Bordering states
Kansas vs Oklahoma
Short answer
- KS
- 2,970,606
- OK
- 4,095,393
The two states, county by county
Both maps share one density scale, so the same shade means the same number of people per square mile on either side of the border. Darker counties are denser. Select a county to open its page.
Kansas
Oklahoma
- < 4
- < 9
- < 22
- < 51
- ≥ 51
Side by side
| Measure | Kansas | Oklahoma |
|---|---|---|
| Residents, 2024 | 2,970,606 | 4,095,393 |
| Rank by population | 34th | 28th |
| Land, sq mi | 81,759 | 68,597 |
| People per sq mi | 36.3 | 59.7 |
| County-equivalents | 105 | 77 |
| Median county residents | 6,946 | 20,577 |
| Median county income | $62,431 | $56,166 |
| Most populous county | Johnson County | Oklahoma County |
| Largest county by land | Butler County | Osage County |
| Capital | Topeka | Oklahoma City |
| Daylight at capital, June 21 | 14 h 55 min | 14 h 34 min |
| Census division | West North Central | West South Central |
Population and density
Oklahoma has 4,095,393 residents, 38% more than Kansas's 2,970,606. Kansas ranks 34th and Oklahoma 28th of the 50 states and DC. Oklahoma is the more crowded, with 59.7 people per square mile against 36.3, 64% more.
Land area
Kansas has 81,759 square miles of land, 19% more than Oklahoma's 68,597. The largest county-equivalent in Kansas is Butler County at 1,430 square miles; in Oklahoma it is Osage County at 2,247.
Counties
Kansas is divided into 105 county-equivalents and Oklahoma into 77, so an average Kansas county covers 779 square miles against 891. The typical county in Kansas has 6,946 residents, against 20,577 in Oklahoma. The most populous are Johnson County (632,276) and Oklahoma County (816,490).
17 county names appear on both sides of the border: Cherokee, Comanche, Ellis, Grant, Harper, Haskell, Jackson, Jefferson, Kiowa, Lincoln, Logan, Marshall, Osage, Ottawa, Pawnee, Pottawatomie, Washington. Use the FIPS code, not the name, when joining data across the two states.
Household income
The median county in Kansas has a household income of $62,431, 11% above Oklahoma's $56,166. The highest county incomes are Johnson County ($103,085) in Kansas and Canadian County ($86,539) in Oklahoma, from SAIPE 2023.
Capitals and daylight
Topeka and Oklahoma City are 265 miles apart in a straight line; from Topeka the initial bearing is 203°, SSW. On June 21, 2026, Topeka gets 14 h 55 min of daylight and Oklahoma City 14 h 34 min; on December 21 the figures are 9 h 25 min and 9 h 45 min. Month by month tables are on the Topeka and Oklahoma City daylight pages.
Where they sit
The border between them is also a Census region boundary: Kansas is in the Midwest and Oklahoma in the South. By county internal points, Kansas spans 2 UTM zones and Oklahoma 3.
Questions people ask
Which is bigger, Kansas or Oklahoma?
Kansas, with 81,759 square miles of land against 68,597, 1.19 times as large.
Which has more people, Kansas or Oklahoma?
Oklahoma has 4,095,393 residents, 38% more than Kansas's 2,970,606.
How far is Topeka from Oklahoma City?
265 miles in a straight line, heading SSW (203°) from Topeka.
Do Kansas and Oklahoma have counties with the same name?
Yes, 17: Cherokee, Comanche, Ellis, Grant, Harper, Haskell, Jackson, Jefferson, Kiowa, Lincoln, Logan, Marshall, Osage, Ottawa, Pawnee, Pottawatomie, Washington.
Sources and data as of
Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.
- 01Census Vintage 2024 county population estimates
- 02Census 2024 Gazetteer, counties
- 03Census SAIPE 2023 state and county estimates
- 04Census Bureau regions and divisions of the United States (last verified 2026-09-30)
How every number is computed: methodology. Spotted a wrong figure? Report an error.