Last official estimated population of Moultrie County was 14,853 (year 2014)[1]. This was 0.005% of total US population and 0.1% of total Illinois state population. Area of Moultrie County is 344.5 mi² (=892.2 km²), in this year population density was 43.12 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Moultrie County population in 2026 would be 14,874 [0].
Historical population of Moultrie 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] +7.04 %/yr
[1860-1870] +4.98 %/yr
[1870-1880] +2.81 %/yr
[1880-1890] +0.56 %/yr
[1890-1900] +0.5 %/yr
[1900-1910] -0.4 %/yr
[1910-1920] +0.14 %/yr
[1920-1930] -1.13 %/yr
[1930-1940] +0.17 %/yr
[1940-1950] -0.23 %/yr
[1950-1960] +0.35 %/yr
[1960-1970] -0.28 %/yr
[1970-1980] +0.93 %/yr
[1980-1990] -0.43 %/yr
[1990-2000] +0.25 %/yr
[2000-2005] +0.42 %/yr
[2005-2010] +0.35 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Moultrie County? Visit this page: Settlements in Moultrie County, IL
Population of Moultrie County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 467 | 431 | 898 |
| 5 to 9 | 536 | 497 | 1,033 |
| 10 to 14 | 563 | 521 | 1,084 |
| 15 to 19 | 476 | 435 | 911 |
| 20 to 24 | 415 | 408 | 823 |
| 25 to 29 | 416 | 398 | 814 |
| 30 to 34 | 452 | 482 | 934 |
| 35 to 39 | 407 | 429 | 836 |
| 40 to 44 | 429 | 410 | 839 |
| 45 to 49 | 437 | 430 | 867 |
| 50 to 54 | 507 | 550 | 1,057 |
| 55 to 59 | 465 | 511 | 976 |
| 60 to 64 | 479 | 473 | 952 |
| 65 to 69 | 386 | 423 | 809 |
| 70 to 74 | 288 | 328 | 616 |
| 75 to 79 | 234 | 259 | 493 |
| 80 to 84 | 153 | 209 | 362 |
| 85+ | 165 | 368 | 533 |
Moultrie 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 | 7200 | 7489 | 14,689 |
| NH | 7192 | 7458 | 14,650 |
| WA | 7137 | 7434 | 14,571 |
| NHWAC | 7125 | 7393 | 14,518 |
| NHWA | 7063 | 7341 | 14,404 |
| H | 83 | 104 | 187 |
| HWAC | 75 | 96 | 171 |
| HWA | 74 | 93 | 167 |
| BAC | 77 | 60 | 137 |
| NHBAC | 72 | 53 | 125 |
| TOM | 65 | 59 | 124 |
| NHTOM | 64 | 55 | 119 |
| IAC | 39 | 37 | 76 |
| BA | 41 | 27 | 68 |
| NHIAC | 36 | 32 | 68 |
| NHBA | 37 | 21 | 58 |
| AAC | 25 | 33 | 58 |
| NHAAC | 23 | 33 | 56 |
| AA | 15 | 23 | 38 |
| NHAA | 13 | 23 | 36 |
| IA | 16 | 19 | 35 |
| NHIA | 14 | 18 | 32 |
| HBAC | 5 | 7 | 12 |
| HBA | 4 | 6 | 10 |
| HIAC | 3 | 5 | 8 |
| HTOM | 1 | 4 | 5 |
| NHNAC | 1 | 3 | 4 |
| NAC | 1 | 3 | 4 |
| HIA | 2 | 1 | 3 |
| HAAC | 2 | 0 | 2 |
| HAA | 2 | 0 | 2 |
| NHNA | 1 | 0 | 1 |
| NA | 1 | 0 | 1 |
| HNAC | 0 | 0 | 0 |
| HNA | 0 | 0 | 0 |
• Champaign County population
41.5 mi,
33°
• Macon County
23.6 mi,
310°
• Coles County
23.2 mi,
111°
• Christian County
35.4 mi,
259°
• Effingham County
40.7 mi,
177°
• Shelby County
19.7 mi,
207°
• Douglas County
23.2 mi,
67°
• Piatt County
25.8 mi,
3°
• De Witt County
40.4 mi,
338°
• Cumberland County
32.5 mi,
140°
[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
*Shelby, Macon Illinois Notes
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