County Maps US

Amador County, California

A county in California, ranked 46 of 58 by population.

CountyFIPS 06005

Within California
Amador County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Jackson, the county seat, located via the 2025 Census Gazetteer.

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Population
41,876
+1,309 (+3.2%) since 2020
Land area
594.6
square miles. A further 1.9% of the total area is water
Population density
70.4
people per square mile, computed rather than published
County seat
Jackson
Seat of county government.
Established
1854
171 years ago
Largest city
Ione city
Population 9,282.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Amador County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Amador County, California from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 555 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Amador County ranks

Position among the 58 counties of California, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn CaliforniaNationally
Population41,87646th of 581,158th of 3,144
Land area594.6 sq mi54th of 581,644th of 3,144
Population density70.4 per sq mi36th of 581,179th of 3,144
Median household income$88,04428th of 58349th of 3,143

Full data for Amador County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population41,876Vintage 2025 Population Estimates
Population in 202040,567Vintage 2025 Population Estimates
2020 estimates base?40,487Vintage 2025 Population Estimates
Land area594.6 sq mi2025 Gazetteer Files
Water area11.4 sq mi2025 Gazetteer Files
Total area606 sq mi2025 Gazetteer Files
Population density?70.4 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$88,044American Community Survey 2020-2024 5-Year Estimates
Median home value$449,800American Community Survey 2020-2024 5-Year Estimates
Median age49.7American Community Survey 2020-2024 5-Year Estimates
Households16,091American Community Survey 2020-2024 5-Year Estimates
Housing units19,019American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-202
303 births, 505 deaths
Net migration
+105
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 5 areas bordering Amador County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
El Dorado CountyCalifornia74 mi192,323
Calaveras CountyCalifornia67 mi46,605
Sacramento CountyCalifornia14 mi1,618,460
Alpine CountyCalifornia13 mi1,043
San Joaquin CountyCalifornia5.5 mi823,815

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 58 counties of California

Open the interactive California county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.