The exchange
Share data, unlock more
Every county published here is free to download and always will be. Credits are the other half of the site: contribute a county dataset and you earn them, then spend them on the things that aren't free — fresh vintages, unopened community uploads, and downloads without the ads. 1,689 counties currently pay more than the standard award for the data nobody has yet.
- Counties wanted
- 1,689
- Top multiplier
- ×3.5
- States with a bounty
- 56
- Counties published
- 1,992
How the loop works
What earns credits
Upload a county's parcel layer. It runs through containment, schema and vintage checks before anything is awarded.
- Upload passes the automated checks Geometry lands inside the county, schema and vintage hold up. +10
- Upload matches a reference copy Machine-comparable to a known-good version of the county. +40
- Upload verified by review No reference existed, so a person confirmed it. The most valuable case. +75
- The county has a bounty open Multiplies the award above, by how badly the county is wanted. ×2 – ×5
- You judged a dataset right Endorse or report what you open; paid only when a reviewer agrees. ×2 the spend
- Create an account Enough to open something and see how it works. +5
What credits buy
Nothing on this list is something you need. Published counties are free to anyone, with or without an account.
- Any published county The whole free catalog. Costs an email confirmation and some ads, not credits. Free
- The same download, without the ads The data stays free; skipping the funnel is what costs. −3
- An unverified community upload Passed the checks, not yet confirmed. Honest uncertainty, priced accordingly. −15
- A premium county A current vintage that is not part of the free release. −250
Why one county pays more than another
Bounties are computed nightly from coverage state, not curated. The multiplier tracks how hard the county is to get and how expensive it is to verify once it arrives.
×3.5
No reference copy to verify against
Nothing exists here to check an upload against, so confirming one takes a person rather than a machine. Hardest to get, dearest to verify, best paid.
1,242 open
×2
Newest version is stale
There is a snapshot, but it has aged past the point where it is safe to work from. A current one supersedes it.
447 open
Paying most right now
×3.5
Bullock County
AL · 01011
No reference copy to verify against
×3.5
Butler County
AL · 01013
No reference copy to verify against
×3.5
Dale County
AL · 01045
No reference copy to verify against
×3.5
Henry County
AL · 01067
No reference copy to verify against
×3.5
Houston County
AL · 01069
No reference copy to verify against
×3.5
Lamar County
AL · 01075
No reference copy to verify against
Every open bounty
| County | GEOID | State | Award | Reason | Open since |
|---|---|---|---|---|---|
| Hampshire County | 25015 | MA | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Middlesex County | 25017 | MA | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Nantucket County | 25019 | MA | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Norfolk County | 25021 | MA | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Plymouth County | 25023 | MA | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Suffolk County | 25025 | MA | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Worcester County | 25027 | MA | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Alcona County | 26001 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Alger County | 26003 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Allegan County | 26005 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Alpena County | 26007 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Antrim County | 26009 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Benzie County | 26019 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Charlevoix County | 26029 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Cheboygan County | 26031 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Crawford County | 26039 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Delta County | 26041 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Emmet County | 26047 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Grand Traverse County | 26055 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Gratiot County | 26057 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Huron County | 26063 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Ingham County | 26065 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Ionia County | 26067 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Iosco County | 26069 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Kalkaska County | 26079 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Keweenaw County | 26083 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Lake County | 26085 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Livingston County | 26093 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Mackinac County | 26097 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Macomb County | 26099 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Marquette County | 26103 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Mason County | 26105 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Mecosta County | 26107 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Monroe County | 26115 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Montmorency County | 26119 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Muskegon County | 26121 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Oakland County | 26125 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Oceana County | 26127 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Ogemaw County | 26129 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Osceola County | 26133 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Oscoda County | 26135 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Ottawa County | 26139 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Presque Isle County | 26141 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Roscommon County | 26143 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Saginaw County | 26145 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Sanilac County | 26151 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Schoolcraft County | 26153 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Shiawassee County | 26155 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| St. Clair County | 26147 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| St. Joseph County | 26149 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Tuscola County | 26157 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Van Buren County | 26159 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Washtenaw County | 26161 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Wayne County | 26163 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Wexford County | 26165 | MI | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Aitkin County | 27001 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Anoka County | 27003 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Beltrami County | 27007 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Benton County | 27009 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Blue Earth County | 27013 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Brown County | 27015 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Carlton County | 27017 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Carver County | 27019 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Cass County | 27021 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Chippewa County | 27023 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Chisago County | 27025 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Clay County | 27027 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Clearwater County | 27029 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Cook County | 27031 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Crow Wing County | 27035 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Dakota County | 27037 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Douglas County | 27041 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Faribault County | 27043 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Fillmore County | 27045 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Grant County | 27051 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Hennepin County | 27053 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Hubbard County | 27057 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Itasca County | 27061 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Kanabec County | 27065 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Kittson County | 27069 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Koochiching County | 27071 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Lac qui Parle County | 27073 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Lake County | 27075 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Lake of the Woods County | 27077 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Le Sueur County | 27079 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Lyon County | 27083 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Marshall County | 27089 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Martin County | 27091 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Mille Lacs County | 27095 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Morrison County | 27097 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Mower County | 27099 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Norman County | 27107 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Olmsted County | 27109 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Otter Tail County | 27111 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Pine County | 27115 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Polk County | 27119 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Ramsey County | 27123 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Renville County | 27129 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-02 |
| Rice County | 27131 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
| Scott County | 27139 | MN | ×3.5 | No reference copy to verify against — No reference copy exists, so a submission has to be checked by hand. | 2026-08-01 |
How a bounty closes
A nightly job reads coverage state and opens a bounty where there is no dataset at all, where the newest snapshot has aged past the staleness threshold, or where enough people searched for a county the site could not serve. Nobody hand-picks a county and nobody bids.
The multiplier applies to the standard upload award and stops applying the moment a version for that county reaches verified status — so the first person to fill it takes the premium, the county opens for everybody, and the site stops paying for data it now has.