Last official estimated population of Washington County was 51,093 (year 2014)[1]. This was 0.016% of total US population and 1.7% of total Mississippi state population. Area of Washington County is 761.2 mi² (=1971.6 km²), in this year population density was 67.12 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Washington County population in 2024 would be 50,983 [0].
Historical population of Washington County for period 1830-2014 [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
[1830-1840] +13.94 %/yr
[1840-1850] +1.42 %/yr
[1850-1860] +6.45 %/yr
[1860-1870] -0.73 %/yr
[1870-1880] +5.7 %/yr
[1880-1890] +4.77 %/yr
[1890-1900] +1.99 %/yr
[1900-1910] -0.06 %/yr
[1910-1920] +0.43 %/yr
[1920-1930] +0.61 %/yr
[1930-1940] +2.21 %/yr
[1940-1950] +0.43 %/yr
[1950-1960] +1.1 %/yr
[1960-1970] -1.08 %/yr
[1970-1980] +0.25 %/yr
[1980-1990] -0.63 %/yr
[1990-2000] -0.75 %/yr
[2000-2005] -2.38 %/yr
[2005-2010] -1.76 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Washington County? Visit this page: Settlements in Washington County, MS
Population of Washington County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1834 | 1780 | 3,614 |
| 5 to 9 | 1898 | 1761 | 3,659 |
| 10 to 14 | 1773 | 1770 | 3,543 |
| 15 to 19 | 1750 | 1695 | 3,445 |
| 20 to 24 | 1811 | 1743 | 3,554 |
| 25 to 29 | 1482 | 1605 | 3,087 |
| 30 to 34 | 1392 | 1653 | 3,045 |
| 35 to 39 | 1251 | 1509 | 2,760 |
| 40 to 44 | 1212 | 1517 | 2,729 |
| 45 to 49 | 1257 | 1584 | 2,841 |
| 50 to 54 | 1530 | 1805 | 3,335 |
| 55 to 59 | 1579 | 1919 | 3,498 |
| 60 to 64 | 1452 | 1724 | 3,176 |
| 65 to 69 | 1041 | 1259 | 2,300 |
| 70 to 74 | 700 | 925 | 1,625 |
| 75 to 79 | 436 | 679 | 1,115 |
| 80 to 84 | 274 | 544 | 818 |
| 85+ | 230 | 584 | 814 |
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 | 22541 | 25767 | 48,308 |
| BAC | 16072 | 19090 | 35,162 |
| BA | 15979 | 18995 | 34,974 |
| NHBAC | 15952 | 18988 | 34,940 |
| NHBA | 15875 | 18906 | 34,781 |
| WAC | 6653 | 6807 | 13,460 |
| WA | 6531 | 6673 | 13,204 |
| NHWAC | 6440 | 6632 | 13,072 |
| NHWA | 6337 | 6516 | 12,853 |
| H | 361 | 289 | 650 |
| AAC | 208 | 208 | 416 |
| NHAAC | 197 | 203 | 400 |
| HWAC | 213 | 175 | 388 |
| HWA | 194 | 157 | 351 |
| AA | 173 | 168 | 341 |
| NHAA | 171 | 166 | 337 |
| TOM | 152 | 158 | 310 |
| NHTOM | 125 | 137 | 262 |
| IAC | 120 | 123 | 243 |
| HBAC | 120 | 102 | 222 |
| HBA | 104 | 89 | 193 |
| NHIAC | 78 | 95 | 173 |
| IA | 55 | 55 | 110 |
| HIAC | 42 | 28 | 70 |
| NHIA | 28 | 38 | 66 |
| NAC | 25 | 25 | 50 |
| HTOM | 27 | 21 | 48 |
| HIA | 27 | 17 | 44 |
| NHNAC | 14 | 20 | 34 |
| NA | 12 | 7 | 19 |
| HNAC | 11 | 5 | 16 |
| HAAC | 11 | 5 | 16 |
| HNA | 7 | 3 | 10 |
| NHNA | 5 | 4 | 9 |
| HAA | 2 | 2 | 4 |
• Bolivar County population
36.5 mi, 
5°
• Leflore County
42.1 mi, 
62°
• Sunflower County
30.5 mi, 
41°
• Desha County
42.1 mi, 
335°
• Chicot County
20.4 mi, 
268°
• West Carroll Parish
44.4 mi, 
221°
• Humphreys County
26.2 mi, 
111°
• East Carroll Parish
41.1 mi, 
204°
• Sharkey County
27.2 mi, 
165°
• Issaquena County
35.9 mi, 
185°
[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
See notes 1 and 5 Mississippi Notes
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