KS · GEOID 20163

Rooks County area

Rooks County, Kansas covers 895.1 square miles: 890.5 square miles of land and 4.6 square miles of water.

Official Census measurements2026 Gazetteer · retrieved September 27, 2026
Land area890.5 mi²
Water area4.6 mi²
Total area895.1 mi²
National land rank#888

County outline

Generalized outline of Rooks 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 Rooks County is located

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

Area breakdown

Land accounts for 99.5% of Rooks County’s measured area and water for 0.5%. Its combined area converts to 2,318.4 square kilometers or approximately 572,893 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land890.5272,306.454569,937.3
Water4.61911.9632,956.2
Total895.1462,318.417572,893.4

How Rooks County compares

By original Census land area, Rooks County ranks #33 of 105 in Kansas and #888 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.22 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?

What stands out about Rooks County?

Rooks County has more land than 2,334 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Rooks County890.5 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 Rooks County at #994 nationally by total area, 106 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 0.5%, compared with a national county-equivalent median of 1.2% — 0.7 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 Rooks County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#887Hardin County, Texas890.6Compare
#888Rooks County, Kansas890.5This county
#889Swisher County, Texas890.2Compare

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 39.346006, -99.324492. 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: 2,306,454,198 m²; AWATER: 11,962,257 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 many acres of land are in Rooks County?

The land measurement converts to approximately 569,937 acres. Including water, total area is approximately 572,893 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

Download the complete CSV or JSON dataset