Oklahoma Citizen Population By County in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen population for Oklahoma was 3,765,145 and represented 96.10% of the total Oklahoma population.

Among all Oklahoma counties, Oklahoma had the highest citizen population (726.17K), followed by Tulsa (603.71K), and Cleveland (268.31K).

In terms of percentages, Cotton had the highest percentage of its population being citizens (100.00%), followed by Noble (99.83%), and Coal (99.82%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.

You may also be interested in:
Oklahoma Citizen Voting-age Population By County in 2018

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Oklahoma Citizen Population By County in 2018

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County	Citizen Population	% of County Population
Oklahoma	726165	92.85
Tulsa	603710	93.92
Cleveland	268310	96.96
Canadian	133935	97.97
Comanche	119575	97.56
Rogers	89770	98.85
Payne	77095	94.58
Wagoner	76135	97.80
Pottawatomie	71245	98.95
Creek	70345	98.86
Muskogee	67775	98.10
Garfield	59490	95.66
Grady	54130	98.90
Washington	50415	96.95
Le Flore	48555	97.29
Carter	47365	97.85
Cherokee	47285	97.29
Osage	47075	99.50
Logan	45290	98.36
Bryan	45080	98.51
Kay	44095	98.25
Pittsburg	43735	98.55
Stephens	43230	98.28
Delaware	41640	98.88
Sequoyah	40885	98.85
Mayes	40700	99.32
Okmulgee	38685	99.47
McClain	37845	97.96
Pontotoc	37775	98.48
Lincoln	34690	99.53
McCurtain	32495	98.57
Ottawa	31070	98.43
Caddo	28105	95.79
Custer	27810	95.21
Garvin	27175	97.66
Seminole	24785	98.86
Jackson	24480	96.44
Beckham	22230	98.28
Adair	21890	98.98
Woodward	19955	95.18
McIntosh	19735	99.57
Texas	16685	79.00
Pawnee	16360	99.57
Marshall	15385	93.95
Choctaw	14785	99.33
Kingfisher	14695	94.08
Craig	14355	99.03
Atoka	13765	99.21
Murray	13670	98.52
Hughes	13370	99.33
Haskell	12575	98.98
Okfuskee	12010	99.13
Noble	11390	99.83
Washita	11215	98.12
Pushmataha	11090	99.73
Johnston	10990	99.55
Latimer	10445	99.52
Nowata	10280	98.99
Love	9560	96.23
Blaine	8975	93.15
Woods	8975	98.36
Kiowa	8900	98.89
Major	7465	96.70
Tillman	7165	95.34
Jefferson	6165	99.04
Cotton	5930	100.00
Greer	5900	99.24
Alfalfa	5725	97.78
Coal	5610	99.82
Beaver	5030	92.89
Dewey	4770	96.95
Grant	4395	99.43
Ellis	3995	98.16
Roger Mills	3660	98.65
Harper	3390	88.17
Harmon	2625	96.51
Cimarron	2080	94.98