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. 2,844 counties currently pay more than the standard award for the data nobody has yet.
- Counties wanted
- 2,844
- 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
×3
No data at all
Nothing published at all. The county is a blank on the map, and the first verified upload opens it for everybody.
1 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.
1,601 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 |
|---|---|---|---|---|---|
| Benton County | 18007 | IN | ×2 | Newest version is stale — Newest vintage is Aug 2018, 97 months old. | 2026-09-01 |
| Blackford County | 18009 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-08-02 |
| Brown County | 18013 | IN | ×2 | Newest version is stale — Newest vintage is Jul 2017, 110 months old. | 2026-09-02 |
| Carroll County | 18015 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Cass County | 18017 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Daviess County | 18027 | IN | ×2 | Newest version is stale — Newest vintage is Nov 2020, 70 months old. | 2026-08-02 |
| Delaware County | 18035 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Fulton County | 18049 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Gibson County | 18051 | IN | ×2 | Newest version is stale — Newest vintage is Dec 2020, 69 months old. | 2026-09-02 |
| Grant County | 18053 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Greene County | 18055 | IN | ×2 | Newest version is stale — Newest vintage is Nov 2016, 118 months old. | 2026-09-02 |
| Harrison County | 18061 | IN | ×2 | Newest version is stale — Newest vintage is Nov 2016, 118 months old. | 2026-09-02 |
| Howard County | 18067 | IN | ×2 | Newest version is stale — Newest vintage is Aug 2016, 121 months old. | 2026-08-02 |
| Huntington County | 18069 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-01 |
| Jay County | 18075 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-08-02 |
| Knox County | 18083 | IN | ×2 | Newest version is stale — Newest vintage is Oct 2015, 131 months old. | 2026-09-02 |
| Kosciusko County | 18085 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-08-02 |
| Lake County | 18089 | IN | ×2 | Newest version is stale — Newest vintage is Jun 2023, 39 months old. | 2026-09-02 |
| LaPorte County | 18091 | IN | ×2 | Newest version is stale — Newest vintage is May 2023, 40 months old. | 2026-09-02 |
| Madison County | 18095 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-08-02 |
| Marion County | 18097 | IN | ×2 | Newest version is stale — Newest vintage is Jan 2017, 116 months old. | 2026-08-02 |
| Martin County | 18101 | IN | ×2 | Newest version is stale — Newest vintage is Jul 2017, 110 months old. | 2026-08-02 |
| Miami County | 18103 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-08-02 |
| Monroe County | 18105 | IN | ×2 | Newest version is stale — Newest vintage is Jul 2017, 110 months old. | 2026-08-02 |
| Montgomery County | 18107 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Morgan County | 18109 | IN | ×2 | Newest version is stale — Newest vintage is Jul 2017, 110 months old. | 2026-09-02 |
| Perry County | 18123 | IN | ×2 | Newest version is stale — Newest vintage is Jan 2018, 104 months old. | 2026-09-01 |
| Porter County | 18127 | IN | ×2 | Newest version is stale — Newest vintage is Mar 2023, 42 months old. | 2026-09-02 |
| Posey County | 18129 | IN | ×2 | Newest version is stale — Newest vintage is Jan 2018, 104 months old. | 2026-09-02 |
| Pulaski County | 18131 | IN | ×2 | Newest version is stale — Newest vintage is Jun 2023, 39 months old. | 2026-09-02 |
| Randolph County | 18135 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Spencer County | 18147 | IN | ×2 | Newest version is stale — Newest vintage is Jan 2018, 104 months old. | 2026-08-02 |
| Vanderburgh County | 18163 | IN | ×2 | Newest version is stale — Newest vintage is Jan 2018, 104 months old. | 2026-09-02 |
| Vermillion County | 18165 | IN | ×2 | Newest version is stale — Newest vintage is Feb 2021, 67 months old. | 2026-09-02 |
| Wabash County | 18169 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-01 |
| Warrick County | 18173 | IN | ×2 | Newest version is stale — Newest vintage is Jan 2018, 104 months old. | 2026-09-01 |
| Wells County | 18179 | IN | ×2 | Newest version is stale — Newest vintage is Jun 2022, 51 months old. | 2026-09-02 |
| White County | 18181 | IN | ×2 | Newest version is stale — Newest vintage is Mar 2023, 42 months old. | 2026-08-02 |
| Whitley County | 18183 | IN | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-08-02 |
| Appanoose County | 19007 | IA | ×2 | Newest version is stale — Newest vintage is Dec 2022, 45 months old. | 2026-09-02 |
| Benton County | 19011 | IA | ×2 | Newest version is stale — Newest vintage is Apr 2018, 101 months old. | 2026-09-02 |
| Buchanan County | 19019 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Butler County | 19023 | IA | ×2 | Newest version is stale — Newest vintage is Feb 2020, 79 months old. | 2026-08-02 |
| Cedar County | 19031 | IA | ×2 | Newest version is stale — Newest vintage is Dec 2022, 45 months old. | 2026-09-01 |
| Cerro Gordo County | 19033 | IA | ×2 | Newest version is stale — Newest vintage is Feb 2016, 127 months old. | 2026-08-02 |
| Chickasaw County | 19037 | IA | ×2 | Newest version is stale — Newest vintage is Jan 2020, 80 months old. | 2026-09-02 |
| Clarke County | 19039 | IA | ×2 | Newest version is stale — Newest vintage is Apr 2018, 101 months old. | 2026-09-02 |
| Clay County | 19041 | IA | ×2 | Newest version is stale — Newest vintage is Oct 2022, 47 months old. | 2026-08-02 |
| Clinton County | 19045 | IA | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Crawford County | 19047 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Delaware County | 19055 | IA | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Dickinson County | 19059 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Dubuque County | 19061 | IA | ×2 | Newest version is stale — Newest vintage is May 2022, 52 months old. | 2026-09-02 |
| Fayette County | 19065 | IA | ×2 | Newest version is stale — Newest vintage is Jul 2018, 98 months old. | 2026-09-02 |
| Floyd County | 19067 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Franklin County | 19069 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Grundy County | 19075 | IA | ×2 | Newest version is stale — Newest vintage is Apr 2018, 101 months old. | 2026-09-02 |
| Henry County | 19087 | IA | ×2 | Newest version is stale — Newest vintage is Oct 2022, 47 months old. | 2026-08-02 |
| Ida County | 19093 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Iowa County | 19095 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Jasper County | 19099 | IA | ×2 | Newest version is stale — Newest vintage is Feb 2016, 127 months old. | 2026-08-02 |
| Jefferson County | 19101 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Jones County | 19105 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Kossuth County | 19109 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Linn County | 19113 | IA | ×2 | Newest version is stale — Newest vintage is Apr 2018, 101 months old. | 2026-09-02 |
| Louisa County | 19115 | IA | ×2 | Newest version is stale — Newest vintage is Oct 2022, 47 months old. | 2026-08-02 |
| Lucas County | 19117 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Madison County | 19121 | IA | ×2 | Newest version is stale — Newest vintage is Mar 2022, 54 months old. | 2026-09-02 |
| Mitchell County | 19131 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Monroe County | 19135 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Montgomery County | 19137 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Muscatine County | 19139 | IA | ×2 | Newest version is stale — Newest vintage is Oct 2021, 59 months old. | 2026-08-02 |
| Osceola County | 19143 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Page County | 19145 | IA | ×2 | Newest version is stale — Newest vintage is Apr 2022, 53 months old. | 2026-08-02 |
| Palo Alto County | 19147 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Poweshiek County | 19157 | IA | ×2 | Newest version is stale — Newest vintage is Feb 2016, 127 months old. | 2026-09-02 |
| Scott County | 19163 | IA | ×2 | Newest version is stale — Newest vintage is Jan 2020, 80 months old. | 2026-08-02 |
| Tama County | 19171 | IA | ×2 | Newest version is stale — Newest vintage is Apr 2018, 101 months old. | 2026-08-02 |
| Taylor County | 19173 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Union County | 19175 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Van Buren County | 19177 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Wapello County | 19179 | IA | ×2 | Newest version is stale — Newest vintage is Dec 2022, 45 months old. | 2026-08-02 |
| Wayne County | 19185 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Winnebago County | 19189 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Worth County | 19195 | IA | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Allen County | 20001 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Atchison County | 20005 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Barber County | 20007 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Bourbon County | 20011 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Brown County | 20013 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Butler County | 20015 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Chase County | 20017 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Chautauqua County | 20019 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Cherokee County | 20021 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Cheyenne County | 20023 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Clark County | 20025 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Clay County | 20027 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Cloud County | 20029 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
| Coffey County | 20031 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-08-02 |
| Comanche County | 20033 | KS | ×2 | Newest version is stale — Newest vintage is Nov 2022, 46 months old. | 2026-09-02 |
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.