Last official estimated population of Sumter County was 94,287 (year 2014)[1]. This was 0.03% of total US population and 0.5% of total Florida state population. Area of Sumter County is 579.8 mi² (=1501.7 km²), in this year population density was 162.61 p/mi². If population growth rate would be same as in period 2010-2014 (+0.23%/yr), Sumter County population in 2026 would be 96,937 [0].
Historical population of Sumter County for period 1860-2014 [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

[1860-1870] +6.66 %/yr
[1870-1880] +4.73 %/yr
[1880-1890] +1.36 %/yr
[1890-1900] +1.44 %/yr
[1900-1910] +0.79 %/yr
[1910-1920] +1.6 %/yr
[1920-1930] +3.09 %/yr
[1930-1940] +0.37 %/yr
[1940-1950] +0.26 %/yr
[1950-1960] +0.47 %/yr
[1960-1970] +2.26 %/yr
[1970-1980] +5.04 %/yr
[1980-1990] +2.67 %/yr
[1990-2000] +5.38 %/yr
[2000-2005] +5.36 %/yr
[2005-2010] +6.17 %/yr
[2010-2014] +0.23 %/yr
Looking for settlements in Sumter County? Visit this page: Settlements in Sumter County, FL
Population of Sumter County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1151 | 1171 | 2,322 |
| 5 to 9 | 1254 | 1194 | 2,448 |
| 10 to 14 | 1208 | 1109 | 2,317 |
| 15 to 19 | 1210 | 1074 | 2,284 |
| 20 to 24 | 1737 | 1233 | 2,970 |
| 25 to 29 | 1992 | 1156 | 3,148 |
| 30 to 34 | 2457 | 1167 | 3,624 |
| 35 to 39 | 2513 | 1184 | 3,697 |
| 40 to 44 | 2359 | 1370 | 3,729 |
| 45 to 49 | 2263 | 1574 | 3,837 |
| 50 to 54 | 2393 | 2295 | 4,688 |
| 55 to 59 | 2715 | 3803 | 6,518 |
| 60 to 64 | 5113 | 7172 | 12,285 |
| 65 to 69 | 9212 | 10830 | 20,042 |
| 70 to 74 | 9251 | 9453 | 18,704 |
| 75 to 79 | 6045 | 5572 | 11,617 |
| 80 to 84 | 3129 | 2786 | 5,915 |
| 85+ | 1973 | 2232 | 4,205 |
Sumter 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 | 53863 | 54030 | 107,893 |
| WAC | 50798 | 52523 | 103,321 |
| WA | 50350 | 52096 | 102,446 |
| NHWAC | 47188 | 50344 | 97,532 |
| NHWA | 46795 | 49959 | 96,754 |
| BAC | 6667 | 3252 | 9,919 |
| BA | 6421 | 3030 | 9,451 |
| NHBAC | 6263 | 3109 | 9,372 |
| NHBA | 6054 | 2916 | 8,970 |
| H | 4112 | 2345 | 6,457 |
| HWAC | 3610 | 2179 | 5,789 |
| HWA | 3555 | 2137 | 5,692 |
| AAC | 467 | 657 | 1,124 |
| NHAAC | 443 | 639 | 1,082 |
| TOM | 526 | 487 | 1,013 |
| IAC | 512 | 413 | 925 |
| AA | 363 | 555 | 918 |
| NHTOM | 459 | 441 | 900 |
| NHAA | 350 | 547 | 897 |
| NHIAC | 391 | 364 | 755 |
| HBAC | 404 | 143 | 547 |
| HBA | 367 | 114 | 481 |
| IA | 277 | 183 | 460 |
| NHIA | 181 | 150 | 331 |
| HIAC | 121 | 49 | 170 |
| NAC | 89 | 48 | 137 |
| HIA | 96 | 33 | 129 |
| HTOM | 67 | 46 | 113 |
| NHNAC | 64 | 39 | 103 |
| NA | 38 | 24 | 62 |
| HAAC | 24 | 18 | 42 |
| NHNA | 24 | 17 | 41 |
| HNAC | 25 | 9 | 34 |
| HNA | 14 | 7 | 21 |
| HAA | 13 | 8 | 21 |
• Hillsborough County population
58.3 mi,
196°
• Orange County
47.6 mi,
106°
• Polk County
57.5 mi,
156°
• Pasco County
36.7 mi,
220°
• Seminole County
57.2 mi,
91°
• Marion County
33.8 mi,
3°
• Lake County
22.2 mi,
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• Hernando County
25.7 mi,
247°
• Citrus County
28.7 mi,
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• Levy County
58.2 mi,
312°
[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
*Marion Florida Notes
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