County Maps US

Hamilton County, Kansas

A county in Kansas, ranked 91 of 105 by population.

CountyFIPS 20075

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

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Population
2,500
+11 (+0.4%) since 2020
Land area
996.5
square miles. A further 0.1% of the total area is water
Population density
2.5
people per square mile, computed rather than published
County seat
Syracuse
Seat of county government.
Established
1873
152 years ago
Largest city
Syracuse city
Population 1,810.

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 Hamilton 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 Hamilton County, Kansas 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 639 by 800 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 Hamilton County ranks

Position among the 105 counties of Kansas, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn KansasNationally
Population2,50091st of 1052,994th of 3,144
Land area996.5 sq mi17th of 105687th of 3,144
Population density2.5 per sq mi95th of 1052,944th of 3,144
Median household income$70,25031st of 1051,182nd of 3,143

Full data for Hamilton County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population2,500Vintage 2025 Population Estimates
Population in 20202,489Vintage 2025 Population Estimates
2020 estimates base?2,519Vintage 2025 Population Estimates
Land area996.5 sq mi2025 Gazetteer Files
Water area1.1 sq mi2025 Gazetteer Files
Total area997.6 sq mi2025 Gazetteer Files
Population density?2.5 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$70,250American Community Survey 2020-2024 5-Year Estimates
Median home value$115,800American Community Survey 2020-2024 5-Year Estimates
Median age32.1American Community Survey 2020-2024 5-Year Estimates
Households757American Community Survey 2020-2024 5-Year Estimates
Housing units1,014American 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
+21
39 births, 18 deaths
Net migration
-30
More people moved out than moved in.

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

The 6 areas bordering Hamilton 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
Kearny CountyKansas37 mi3,888
Prowers CountyColorado36 mi11,884
Stanton CountyKansas28 mi1,986
Greeley CountyKansas26 mi1,182
Wichita CountyKansas1.4 mi2,031
Grant CountyKansasa single point7,028

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

All 105 counties of Kansas

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

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