Last official estimated population of Colleton County was 38,911 (year 2014)[1]. This was 0.012% of total US population and 0.8% of total South Carolina state population. Area of Colleton County is 1,133.3 mi² (=2935.2 km²), in this year population density was 34.33 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Colleton County population in 2024 would be 38,959 [0].
Historical population of Colleton County for period 1800-2014 [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
[1800-1810] +0.57 %/yr
[1810-1820] +0.02 %/yr
[1820-1830] +0.32 %/yr
[1830-1840] -0.65 %/yr
[1840-1850] +4.46 %/yr
[1850-1860] +0.59 %/yr
[1860-1870] -4.88 %/yr
[1870-1880] +3.66 %/yr
[1880-1890] +1.03 %/yr
[1890-1900] -1.84 %/yr
[1900-1910] +0.56 %/yr
[1910-1920] -1.67 %/yr
[1920-1930] -1.46 %/yr
[1930-1940] +0.17 %/yr
[1940-1950] +0.73 %/yr
[1950-1960] -0.15 %/yr
[1960-1970] -0.07 %/yr
[1970-1980] +1.41 %/yr
[1980-1990] +0.79 %/yr
[1990-2000] +1.08 %/yr
[2000-2005] +0.24 %/yr
[2005-2010] +0.08 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Colleton County? Visit this page: Settlements in Colleton County, SC
Population of Colleton County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1107 | 1159 | 2,266 |
| 5 to 9 | 1240 | 1264 | 2,504 |
| 10 to 14 | 1257 | 1176 | 2,433 |
| 15 to 19 | 1143 | 1157 | 2,300 |
| 20 to 24 | 1141 | 1113 | 2,254 |
| 25 to 29 | 1000 | 1117 | 2,117 |
| 30 to 34 | 914 | 1083 | 1,997 |
| 35 to 39 | 912 | 1065 | 1,977 |
| 40 to 44 | 1018 | 1138 | 2,156 |
| 45 to 49 | 1168 | 1298 | 2,466 |
| 50 to 54 | 1334 | 1454 | 2,788 |
| 55 to 59 | 1338 | 1408 | 2,746 |
| 60 to 64 | 1304 | 1447 | 2,751 |
| 65 to 69 | 1183 | 1266 | 2,449 |
| 70 to 74 | 870 | 955 | 1,825 |
| 75 to 79 | 537 | 732 | 1,269 |
| 80 to 84 | 331 | 382 | 713 |
| 85+ | 280 | 480 | 760 |
Colleton 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 | 17452 | 19163 | 36,615 |
| WAC | 11215 | 11550 | 22,765 |
| WA | 10976 | 11279 | 22,255 |
| NHWAC | 10685 | 11118 | 21,803 |
| NHWA | 10469 | 10874 | 21,343 |
| BAC | 6770 | 8045 | 14,815 |
| NHBAC | 6684 | 7958 | 14,642 |
| BA | 6605 | 7843 | 14,448 |
| NHBA | 6537 | 7775 | 14,312 |
| H | 625 | 531 | 1,156 |
| HWAC | 530 | 432 | 962 |
| HWA | 507 | 405 | 912 |
| TOM | 275 | 315 | 590 |
| NHTOM | 245 | 284 | 529 |
| IAC | 253 | 260 | 513 |
| NHIAC | 221 | 230 | 451 |
| IA | 145 | 157 | 302 |
| NHIA | 129 | 139 | 268 |
| AAC | 108 | 142 | 250 |
| NHAAC | 103 | 130 | 233 |
| HBAC | 86 | 87 | 173 |
| AA | 68 | 92 | 160 |
| NHAA | 67 | 87 | 154 |
| HBA | 68 | 68 | 136 |
| HIAC | 32 | 30 | 62 |
| HTOM | 30 | 31 | 61 |
| NAC | 24 | 24 | 48 |
| NHNAC | 20 | 19 | 39 |
| HIA | 16 | 18 | 34 |
| HAAC | 5 | 12 | 17 |
| NA | 8 | 8 | 16 |
| NHNA | 5 | 4 | 9 |
| HNAC | 4 | 5 | 9 |
| HNA | 3 | 4 | 7 |
| HAA | 1 | 5 | 6 |
• Charleston County population
41.5 mi, 
93°
• Berkeley County
48.1 mi, 
57°
• Beaufort County
33 mi, 
183°
• Dorchester County
22.4 mi, 
40°
• Orangeburg County
42.4 mi, 
348°
• Effingham County
51.7 mi, 
230°
• Jasper County
35.1 mi, 
217°
• Hampton County
28.6 mi, 
262°
• Bamberg County
34.3 mi, 
317°
• Allendale County
42.3 mi, 
283°
[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 note 10 South Carolina Notes
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