• county
  • FIPS 40071
  • Largest town: Ponca City

Kay County, Oklahoma

Kay County had 43,437 residents in the Census Vintage 2024 estimate, on 919.6 square miles of land. It ranks 23rd of 77 in Oklahoma by population and 28th by land area.

Population
43,437
#23 of 77 in Oklahoma · #1,128 in US
Area
919.6 sq mi
#28 of 77 in Oklahoma · #798 in US
Density
47 / sq mi
#27 of 77 in Oklahoma · #1,526 in US
Median household income
$55,440
#42 of 77 in Oklahoma · #2,286 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Kay County within Oklahoma. Pin: Oklahoma City.

Measure from here

Tools and pages that start from Kay County

Kay County population, land area and income

Kay County had 43,437 residents in the Census Vintage 2024 estimate, on 919.6 square miles of land. It ranks 23rd of 77 in Oklahoma by population and 28th by land area. That works out to 47.2 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Oklahoma has 20,577 residents, so Kay County is 2.1 times that size.

Its SAIPE 2023 median household income of $55,440 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

43,437

3144th1st

1128th of 3,144 (US)

Land area

920 sq mi

3144th1st

798th of 3,144 (US)

Density

47.2 / sq mi

3144th1st

1526th of 3,144 (US)

Median household income

$55,440

3143rd1st

2286th of 3,143 (US)

Rank within Oklahoma (77)

Population

43,437

77th1st

23rd of 77 (OK)

Land area

920 sq mi

77th1st

28th of 77 (OK)

Density

47.2 / sq mi

77th1st

27th of 77 (OK)

Median household income

$55,440

77th1st

42nd of 77 (OK)

How Kay County's population changed since 2020

Kay County lost 174 residents between the July 2020 and July 2024 estimates, a drop of 0.4%. That ranks 54th of 77 in Oklahoma for growth. The median Oklahoma county changed by +0.8%, and the state as a whole by +3.3%.

Since the April 2020 estimates base, Kay County recorded 2,272 births and 2,820 deaths, a natural change of -548. Net international migration added +74 and net domestic migration, people moving to or from other US counties, came to +221. The largest single component was natural change, which removed 548 people.

43.6k202043.7k202143.7k202243.6k202343.4k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
2,272
Deaths
2,820
Net international migration
+74
Net domestic migration
+221
Change, July 2023 to July 2024
-184

Where Kay County is

The Census internal point of Kay County is at 36.814900, -97.143900. It sits in UTM zone 14N. The map shades Oklahoma's 77 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Kay County outlined. Dots are towns of 1,000+ people with residents in it.

Kingfisher County: +4.2%Okfuskee County: +0.8%Creek County: +2.9%Carter County: +2.3%Hughes County: +0.2%Murray County: -0.9%Haskell County: +2.2%Cherokee County: +3.5%Grady County: +6.3%Canadian County: +16.9%Caddo County: -2.1%Garvin County: +1.9%Custer County: -0.6%Pushmataha County: +0.1%Mayes County: +2.8%Stephens County: +2.9%Dewey County: -4.6%Greer County: -1.1%Logan County: +8.3%Atoka County: +3.1%Nowata County: +2.5%Beckham County: -0.4%Cimarron County: -6.9%Harper County: -1.2%Cleveland County: +2.6%Texas County: -3.4%Marshall County: +5.3%Tulsa County: +3.4%McIntosh County: +4.0%Grant County: -1.3%Seminole County: -0.7%Garfield County: -1.1%Jackson County: -0.8%Blaine County: -1.5%Lincoln County: +4.4%Alfalfa County: +0.0%Jefferson County: +0.8%Okmulgee County: +1.1%Major County: -2.3%Noble County: -0.2%Oklahoma County: +2.3%Pawnee County: +3.5%Bryan County: +8.6%Payne County: +3.1%Adair County: +1.9%Harmon County: -6.5%Love County: +2.6%Craig County: +2.6%Rogers County: +6.3%Muskogee County: +0.8%Sequoyah County: +3.3%Delaware County: +3.4%Johnston County: +0.5%Pittsburg County: -0.9%Le Flore County: +3.4%McClain County: +15.6%Woodward County: -2.1%Ottawa County: +0.6%Choctaw County: -0.2%Cotton County: -0.6%Roger Mills County: -3.6%Washita County: -0.6%Coal County: +2.5%Pontotoc County: +0.6%Kiowa County: -2.8%Tillman County: -3.0%Ellis County: -3.9%Wagoner County: +12.1%Beaver County: -0.1%McCurtain County: -0.1%Kay County: -0.4%Pottawatomie County: +2.6%Osage County: +1.5%Comanche County: +0.2%Washington County: +2.8%Woods County: -0.2%Latimer County: +0.3%
Change 2020 to 2024
  1. < -1.1%
  2. < +0.0%
  3. < +2.2%
  4. < +3.3%
  5. ≥ +3.3%
no data

Orange pin: Kay County internal point. Dark pin: Oklahoma City.

Internal point

Decimal
36.814900, -97.143900
DMS
36°48'53.64"N 97°08'38.04"W
UTM
14N 665556.2E 4075946.2N
Geohash
9ydcmmvyr
Plus code
8684RV74+XC

Towns in Kay County

4 incorporated places of 1,000+ people have residents in Kay County, 35,481 people together, or 82% of the county. Each figure counts only the part of the town inside Kay County; towns marked "part" extend into another county. The largest is Ponca City with 24,234.

  1. 01Ponca City24,234
  2. 02Blackwell6,016
  3. 03Tonkawa2,988
  4. 04Newkirk2,243
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Kay County

The Census 2024 county adjacency file lists 6 neighbors for Kay County, including 2 across a state line. The most populous is Garfield County, OK, with 62,007 residents. Distances run between Census internal points in a straight line.

Distance to Oklahoma City and the nearest big city

Oklahoma City is 93.6 miles SSW of Kay County's internal point in a straight line. The nearest place of 100,000 or more is Wichita, KS (population 400,991), 61.5 miles away. The nearest place of 10,000 or more is Ponca City, OK (population 24,234), 7.7 miles away.

Kay County FIPS code

The FIPS code of Kay County is 40071: state code 40 for Oklahoma plus county code 071. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $55,440.

Questions people ask

What is the population of Kay County, Oklahoma?

The Census Vintage 2024 estimate for July 1, 2024 is 43,437. That is down 174 people (0.4%) from the July 2020 estimate of 43,611.

What is the FIPS code of Kay County?

40071. The first two digits (40) are Oklahoma; the last three (071) identify the county.

What is the largest town in Kay County?

Ponca City, with 24,234 residents inside Kay County in 2024.

Which counties border Kay County?

6 county-equivalents border it in the Census 2024 adjacency file: Garfield County, OK; Osage County, OK; Cowley County, KS; Sumner County, KS; Noble County, OK; Grant County, OK.

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.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.