Last official estimated population of Washington County was 51,080 (year 2014)[1]. This was 0.016% of total US population and 1.3% of total Oklahoma state population. Area of Washington County is 424.3 mi² (=1098.8 km²), in this year population density was 120.40 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Washington County population in 2025 would be 51,367 [0].
Historical population of Washington County for period 1880-2014 [1] , [2] , [3]:
Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.
Population • Density • Changes • Legends • Position
[1880-1890] NAN %/yr
[1890-1900] +INF %/yr
[1900-1910] +3.16 %/yr
[1910-1920] +4.44 %/yr
[1920-1930] +0.28 %/yr
[1930-1940] +0.96 %/yr
[1940-1950] +0.73 %/yr
[1950-1960] +2.56 %/yr
[1960-1970] -0.02 %/yr
[1970-1980] +1.3 %/yr
[1980-1990] -0.01 %/yr
[1990-2000] +0.2 %/yr
[2000-2005] -0.05 %/yr
[2005-2010] +0.84 %/yr
[2010-2014] +0.05 %/yr
Looking for settlements in Washington County? Visit this page: Settlements in Washington County, OK
Population of Washington County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 1716 | 1587 | 3,303 |
5 to 9 | 1793 | 1646 | 3,439 |
10 to 14 | 1838 | 1652 | 3,490 |
15 to 19 | 1708 | 1552 | 3,260 |
20 to 24 | 1627 | 1573 | 3,200 |
25 to 29 | 1500 | 1493 | 2,993 |
30 to 34 | 1632 | 1619 | 3,251 |
35 to 39 | 1403 | 1478 | 2,881 |
40 to 44 | 1447 | 1534 | 2,981 |
45 to 49 | 1348 | 1529 | 2,877 |
50 to 54 | 1643 | 1948 | 3,591 |
55 to 59 | 1854 | 1991 | 3,845 |
60 to 64 | 1532 | 1636 | 3,168 |
65 to 69 | 1247 | 1500 | 2,747 |
70 to 74 | 998 | 1212 | 2,210 |
75 to 79 | 805 | 1033 | 1,838 |
80 to 84 | 590 | 829 | 1,419 |
85+ | 552 | 892 | 1,444 |
Washington County resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.
Race | Male | Female | Total |
NH | 23767 | 25220 | 48,987 |
WAC | 21226 | 22678 | 43,904 |
NHWAC | 19989 | 21379 | 41,368 |
WA | 19693 | 21082 | 40,775 |
NHWA | 18530 | 19892 | 38,422 |
IAC | 4051 | 4220 | 8,271 |
NHIAC | 3823 | 3984 | 7,807 |
IA | 2735 | 2791 | 5,526 |
NHIA | 2571 | 2653 | 5,224 |
TOM | 1615 | 1700 | 3,315 |
NHTOM | 1536 | 1583 | 3,119 |
H | 1466 | 1484 | 2,950 |
HWAC | 1237 | 1299 | 2,536 |
HWA | 1163 | 1190 | 2,353 |
BAC | 1072 | 988 | 2,060 |
NHBAC | 1006 | 930 | 1,936 |
BA | 744 | 662 | 1,406 |
NHBA | 694 | 627 | 1,321 |
AAC | 538 | 585 | 1,123 |
NHAAC | 520 | 569 | 1,089 |
AA | 434 | 460 | 894 |
NHAA | 425 | 456 | 881 |
HIAC | 228 | 236 | 464 |
HIA | 164 | 138 | 302 |
HTOM | 79 | 117 | 196 |
HBAC | 66 | 58 | 124 |
HBA | 50 | 35 | 85 |
NAC | 39 | 35 | 74 |
NHNAC | 37 | 33 | 70 |
HAAC | 18 | 16 | 34 |
NA | 12 | 9 | 21 |
NHNA | 11 | 9 | 20 |
HAA | 9 | 4 | 13 |
HNAC | 2 | 2 | 4 |
HNA | 1 | 0 | 1 |
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[0] Calculated by population.us from last known population growth rate, not official data.
[1] County population - 2014, archived from the original, retrieved 02/23/2016
[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016
[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016
[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016
[4] County area, latitude longitude data, retrieved 02/23/2016
[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016
*Cherokee Nation Oklahoma Notes
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