Graham County area

Graham County, Kansas covers 898.8 square miles: 898.5 square miles of land and 0.231 square miles of water. Its county seat is Hill City. An estimated 2,371 people lived there in 2025.

Official Census measurements · GEOID 200652026 Gazetteer · retrieved September 27, 2026
Land area898.5 mi²
Water area0.231 mi²
Population (2025)2,371
People per mi²2.6

County outline

Generalized outline of Graham County, Kansas
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Graham County is located

Graham County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 100% of Graham County’s measured area and water for 0%. Its combined area converts to 2,327.8 square kilometers or approximately 575,205 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land898.5272,327.174575,057.3
Water0.2310.598147.8
Total898.7582,327.773575,205.1

How Graham County compares

By original Census land area, Graham County ranks #25 of 105 in Kansas and #863 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.231 times the Kansas county-equivalent median of 729.7 square miles. It accounts for 1.1% of the combined county land area in the state.

See the complete Kansas ranking · What counts as a county equivalent?

Population and density of Graham County

The Census Bureau estimates that 2,371 people lived in Graham County on July 1, 2025. That ranks #3,087 of 3,222 county equivalents nationally and #97 of 105 in Kansas. Since the April 1, 2020 estimates base of 2,415, the population has declined by 44 (−1.8%), compared with +1.3% for Kansas as a whole.

With 898.5 square miles of land, that is 2.6 people per square mile (1 per km²), placing Graham County #3,015 nationally for density and #93 in Kansas. The median county equivalent has 47 people per square mile; the Kansas median is 8.1. Put another way, there are about 243 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate2,4062,4022,3942,3702,3512,371
Change—−4−8−24−19+20

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Graham County

3 incorporated places lie at least partly in Graham County. Together they are home to 1,637 people (69%); the other 734 (31%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Hill City city, with 1,376 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Hill City cityCounty seat1,376−1.7%1.681
Bogue city146−2.7%0.259
Morland city115−2.5%0.478

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Graham County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Graham County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

13 ZIP Code Tabulation Areas have land in Graham County; 4 of them have most of their land inside the county, and the others mainly cover neighboring areas.

67625676316763267637676426764567646676506765667657676596767267740

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Graham County

Graham County shares a land border with 6 county equivalents. It has more land than 5 of them. The largest neighbor is Gove County (1,071.7 mi²) and the smallest is Norton County (878 mi²). Together with its neighbors, Graham County forms a block of 6,410.1 mi² of land, of which it holds 14%.

Map of Graham County and the 6 county equivalents that border it Rooks County, Kansas: 890.5 mi² landSheridan County, Kansas: 896 mi² landTrego County, Kansas: 889.5 mi² landNorton County, Kansas: 878 mi² landPhillips County, Kansas: 885.9 mi² landGove County, Kansas: 1,071.7 mi² land
Graham County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. GrahamCompare
Gove County1,071.71.2× largerCompare
Sheridan County896about the sameCompare
Rooks County890.5about the sameCompare
Trego County889.5about the sameCompare
Phillips County885.9about the sameCompare
Norton County878about the sameCompare

How big is Graham County compared with U.S. states?

Graham County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.2 times as much. Kansas’s county land could hold about 91 areas the size of Graham County.

Land area: Graham County and the closest-sized states
Graham County898.5 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 30 miles (48.2 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Graham County?

Graham County has more land than 2,359 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Graham County898.5 mi²
Kansas median729.7 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Graham County at #980 nationally by total area, 117 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 0%, compared with a national county-equivalent median of 1.2% — 1.1 percentage points lower. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Graham County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#862Fisher County, Texas899Compare
#863Graham County, Kansas898.5This county
#864Baraga County, Michigan898.4Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 39.354972, -99.879894. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 2,327,173,849 m²; AWATER: 599,356 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Graham County?

Graham County, Kansas has 898.5 square miles (2,327.2 km²) of land and 0.231 square miles of water, for a total area of 898.8 square miles. It ranks #863 of 3,222 U.S. county equivalents by land area.

Is Graham County the largest county in Kansas?

No. Graham County ranks #25 of 105 in Kansas by land area. The largest is Butler County, with 1,429.7 square miles of land.

What counties border Graham County?

Graham County shares a land border with Rooks County, Sheridan County, Trego County, Norton County, Phillips County, and Gove County.

What is the population of Graham County?

The Census Bureau estimates Graham County had 2,371 residents on July 1, 2025, ranking #3,087 of 3,222 county equivalents. That is 2.6 people per square mile of land.

What is the county seat of Graham County?

The county seat of Graham County is Hill City.

What cities and towns are in Graham County?

Graham County has 3 incorporated places. The most populous are Hill City city, Bogue city, and Morland city; 734 residents live outside any incorporated place.

Is Graham County part of a metropolitan area?

No. Graham County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Graham County?

13 ZIP Code Tabulation Areas have land in Graham County, and 4 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Graham County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.2 times as much land.

How many acres of land are in Graham County?

The land measurement converts to approximately 575,057 acres. Including water, total area is approximately 575,205 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

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