Last official estimated population of Champaign County was 201,460 (year 2014)[1]. This was 0.063% of total US population and 1.6% of total Illinois state population. Area of Champaign County is 998.4 mi² (=2585.8 km²), in this year population density was 201.78 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Champaign County population in 2026 would be 202,601 [0].
Historical population of Champaign County for period 1840-2014 [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

[1840-1850] +6.03 %/yr
[1850-1860] +18.64 %/yr
[1860-1870] +8.39 %/yr
[1870-1880] +2.24 %/yr
[1880-1890] +0.31 %/yr
[1890-1900] +1.23 %/yr
[1900-1910] +0.85 %/yr
[1910-1920] +0.95 %/yr
[1920-1930] +1.22 %/yr
[1930-1940] +0.94 %/yr
[1940-1950] +4.16 %/yr
[1950-1960] +2.24 %/yr
[1960-1970] +2.12 %/yr
[1970-1980] +0.31 %/yr
[1980-1990] +0.27 %/yr
[1990-2000] +0.38 %/yr
[2000-2005] +1.19 %/yr
[2005-2010] +1.07 %/yr
[2010-2014] +0.05 %/yr
Looking for settlements in Champaign County? Visit this page: Settlements in Champaign County, IL
Population of Champaign County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 5831 | 5654 | 11,485 |
| 5 to 9 | 5548 | 5543 | 11,091 |
| 10 to 14 | 5285 | 5233 | 10,518 |
| 15 to 19 | 10582 | 9864 | 20,446 |
| 20 to 24 | 18220 | 15901 | 34,121 |
| 25 to 29 | 8705 | 8084 | 16,789 |
| 30 to 34 | 7207 | 7046 | 14,253 |
| 35 to 39 | 5756 | 5654 | 11,410 |
| 40 to 44 | 5341 | 5437 | 10,778 |
| 45 to 49 | 4882 | 5074 | 9,956 |
| 50 to 54 | 5465 | 5933 | 11,398 |
| 55 to 59 | 5544 | 6078 | 11,622 |
| 60 to 64 | 4976 | 5372 | 10,348 |
| 65 to 69 | 3602 | 3956 | 7,558 |
| 70 to 74 | 2287 | 2778 | 5,065 |
| 75 to 79 | 1713 | 2111 | 3,824 |
| 80 to 84 | 1249 | 1757 | 3,006 |
| 85+ | 1174 | 2291 | 3,465 |
Champaign 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 | 97163 | 98253 | 195,416 |
| WAC | 78874 | 79287 | 158,161 |
| WA | 76321 | 76590 | 152,911 |
| NHWAC | 73511 | 74452 | 147,963 |
| NHWA | 71208 | 71987 | 143,195 |
| BAC | 14001 | 15469 | 29,470 |
| NHBAC | 13391 | 14936 | 28,327 |
| BA | 12617 | 13947 | 26,564 |
| NHBA | 12150 | 13545 | 25,695 |
| AAC | 12305 | 11102 | 23,407 |
| NHAAC | 12121 | 10954 | 23,075 |
| AA | 11124 | 9917 | 21,041 |
| NHAA | 11007 | 9819 | 20,826 |
| H | 6204 | 5513 | 11,717 |
| HWAC | 5363 | 4835 | 10,198 |
| HWA | 5113 | 4603 | 9,716 |
| TOM | 2770 | 2915 | 5,685 |
| NHTOM | 2492 | 2661 | 5,153 |
| IAC | 847 | 798 | 1,645 |
| HBAC | 610 | 533 | 1,143 |
| NHIAC | 556 | 569 | 1,125 |
| HBA | 467 | 402 | 869 |
| IA | 406 | 315 | 721 |
| HTOM | 278 | 254 | 532 |
| HIAC | 291 | 229 | 520 |
| NAC | 270 | 229 | 499 |
| NHNAC | 223 | 196 | 419 |
| NHIA | 213 | 174 | 387 |
| HIA | 193 | 141 | 334 |
| HAAC | 184 | 148 | 332 |
| HAA | 117 | 98 | 215 |
| NA | 129 | 82 | 211 |
| NHNA | 93 | 67 | 160 |
| HNAC | 47 | 33 | 80 |
| HNA | 36 | 15 | 51 |
• McLean County population
42 mi,
305°
• Vermilion County
25 mi,
82°
• Coles County
43.2 mi,
181°
• Douglas County
25.8 mi,
183°
• Edgar County
39.7 mi,
143°
• Piatt County
22.7 mi,
246°
• De Witt County
37.3 mi,
274°
• Vermillion County
43.6 mi,
116°
• Moultrie County
41.5 mi,
213°
• Ford County
31.6 mi,
357°
[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
*Vermilion Illinois Notes
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