Gem County, Idaho
Gem County, ID: irrigated cash rent $143 an acre (2026); land and buildings $4,014 an acre in the 2022 census; median corn yield 219.0 bu/ac. County averages from public records, not an appraisal of any farm. FIPS 16045. Figures as of 2026-09-20.
Irrigation covers 97 percent of harvested cropland here, with groundwater supplying only 5 percent of that water in 2015. July nights have warmed, from a 56.5 F normal to 58.9 F recently, part of a 1.06 F per decade trend since 1976.
ID median $179 · 12th lowest of 32
ID median $3,689 · 18th highest of 42
ID median $5.70 · 17th lowest of 36
ID median 33% · 8th highest of 42
Cash rent
Dollars per acre, USDA NASS county survey. A break in a line is a year with no published survey; nothing is drawn across it.
Land value
Corn yield
Bushels per acre, USDA NASS county yields, all practices. The dashed line is the median of the published years.
Crop insurance record
Claims paid divided by total premium (the farmer share plus the federal subsidy), each closed crop year since 1989. Above the dashed line, the county's insurance book paid out more than it took in. 2026, still open, is left out.
Drought and weather
Weeks per year, U.S. Drought Monitor, with half the county or more in D2 (severe) drought or worse.
Land, water and programs
Acres enrolled in the Conservation Reserve Program, USDA FSA, by fiscal year.
Next door
| County | Dry rent | Irr. rent | Land value | Claims per $100 |
|---|---|---|---|---|
| Gem County | — | $143 | $4,014 | $5.49 |
| Ada County | — | $208 | $13,084 | $3.22 |
| Adams County | — | $70 | $2,752 | — |
| Boise County | — | — | $2,053 | — |
| Canyon County | — | $300 | $13,588 | $5.62 |
| Payette County | $34 2025 | $184 | $5,191 | $4.37 |
| Valley County | — | $106 | $3,900 | — |
| Washington County | $30 2023 | $221 | $2,299 | $6.28 |
| Median next door | — | $196 | $3,900 | $5.00 |
Counties that share a stretch of boundary. An older rent carries its year and stays out of the median.
Cite this page
AGSIST Farmland Atlas. Gem County, Idaho. Figures as of 2026-09-20, from USDA NASS, USDA RMA, USDA FSA, the U.S. Drought Monitor and NOAA. https://agsist.com/farmland-atlas/idaho/gem-countyEvery figure is a county average from the sources named below. Ranks count counties with 10,000 acres or more in farms, in the same survey year for rent, within the state. Methods: how each figure is built. Downloads: all counties, CSV.
Sources, dates and arithmetic
"Figures as of" is the date this page's numbers last changed; it moves only when a figure on the page does. Source files and their retrieval dates are listed on the data page.
Rent: USDA NASS Cash Rents Survey, county. Land value: Census of Agriculture, operators' estimate of land and buildings. Yield: NASS county corn yields, trend fitted here over every published year since 2008. Loss ratio: claims (indemnity) divided by total premium, USDA RMA Summary of Business, 1989 on, open crop year left out. Drought: U.S. Drought Monitor, weeks with half the county or more in D2 or worse. July lows: NOAA nClimDiv county monthly minimum temperature. A dash means the record does not carry the figure or the source withheld it; the reason is printed beside it.