Last official estimated population of Richland County was 17,985 (year 2014)[1]. This was 0.006% of total US population and 0.3% of total Wisconsin state population. Area of Richland County is 589.3 mi² (=1526.3 km²), in this year population density was 30.52 p/mi². If population growth rate would be same as in period 2010-2014 (-0.05%/yr), Richland County population in 2026 would be 17,877 [0].
Historical population of Richland County for period 1850-2014 [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

[1850-1860] +26.84 %/yr
[1860-1870] +4.92 %/yr
[1870-1880] +1.45 %/yr
[1880-1890] +0.51 %/yr
[1890-1900] +0.19 %/yr
[1900-1910] -0.35 %/yr
[1910-1920] +0.53 %/yr
[1920-1930] -0.15 %/yr
[1930-1940] +0.43 %/yr
[1940-1950] -0.57 %/yr
[1950-1960] -0.84 %/yr
[1960-1970] -0.35 %/yr
[1970-1980] +0.23 %/yr
[1980-1990] +0.03 %/yr
[1990-2000] +0.23 %/yr
[2000-2005] +0.37 %/yr
[2005-2010] -0.26 %/yr
[2010-2014] -0.05 %/yr
Looking for settlements in Richland County? Visit this page: Settlements in Richland County, WI
Population of Richland County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 475 | 474 | 949 |
| 5 to 9 | 602 | 561 | 1,163 |
| 10 to 14 | 629 | 548 | 1,177 |
| 15 to 19 | 535 | 528 | 1,063 |
| 20 to 24 | 504 | 468 | 972 |
| 25 to 29 | 427 | 391 | 818 |
| 30 to 34 | 467 | 461 | 928 |
| 35 to 39 | 493 | 420 | 913 |
| 40 to 44 | 531 | 480 | 1,011 |
| 45 to 49 | 518 | 528 | 1,046 |
| 50 to 54 | 647 | 657 | 1,304 |
| 55 to 59 | 722 | 707 | 1,429 |
| 60 to 64 | 761 | 678 | 1,439 |
| 65 to 69 | 497 | 496 | 993 |
| 70 to 74 | 374 | 412 | 786 |
| 75 to 79 | 322 | 322 | 644 |
| 80 to 84 | 191 | 251 | 442 |
| 85+ | 182 | 403 | 585 |
Richland 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 |
| WAC | 8705 | 8654 | 17,359 |
| NH | 8646 | 8595 | 17,241 |
| WA | 8625 | 8578 | 17,203 |
| NHWAC | 8490 | 8479 | 16,969 |
| NHWA | 8412 | 8404 | 16,816 |
| H | 231 | 190 | 421 |
| HWAC | 215 | 175 | 390 |
| HWA | 213 | 174 | 387 |
| BAC | 111 | 73 | 184 |
| NHBAC | 105 | 71 | 176 |
| TOM | 82 | 78 | 160 |
| NHTOM | 80 | 77 | 157 |
| AAC | 74 | 71 | 145 |
| NHAAC | 71 | 67 | 138 |
| IAC | 62 | 66 | 128 |
| BA | 74 | 40 | 114 |
| NHIAC | 54 | 56 | 110 |
| AA | 56 | 53 | 109 |
| NHBA | 70 | 38 | 108 |
| NHAA | 53 | 49 | 102 |
| IA | 33 | 35 | 68 |
| NHIA | 26 | 26 | 52 |
| HIAC | 8 | 10 | 18 |
| HIA | 7 | 9 | 16 |
| NAC | 11 | 3 | 14 |
| NHNAC | 9 | 3 | 12 |
| NA | 7 | 1 | 8 |
| HBAC | 6 | 2 | 8 |
| HAAC | 3 | 4 | 7 |
| HAA | 3 | 4 | 7 |
| NHNA | 5 | 1 | 6 |
| HBA | 4 | 2 | 6 |
| HTOM | 2 | 1 | 3 |
| HNAC | 2 | 0 | 2 |
| HNA | 2 | 0 | 2 |
• La Crosse County population
49.9 mi,
317°
• Sauk County
25 mi,
81°
• Grant County
37.3 mi,
200°
• Monroe County
40.4 mi,
346°
• Vernon County
24.8 mi,
308°
• Juneau County
41.7 mi,
22°
• Iowa County
30.1 mi,
149°
• Lafayette County
52.1 mi,
162°
• Crawford County
27.3 mi,
251°
• Allamakee County
48.1 mi,
261°
[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
*Crawford, Sauk Wisconsin Notes
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