Last official estimated population of Charleston County was 351,235 (year 2014)[1]. This was 0.11% of total US population and 7.2% of total South Carolina state population. Area of Charleston County is 1,358.0 mi² (=3517.2 km²), in this year population density was 258.64 p/mi². If population growth rate would be same as in period 2010-2014 (+0.07%/yr), Charleston County population in 2023 would be 353,555 [0].
Historical population of Charleston County for period 1790-2014 [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
[1790-1800] -1.52 %/yr
[1800-1810] +0.95 %/yr
[1810-1820] +2.42 %/yr
[1820-1830] +0.74 %/yr
[1830-1840] -0.43 %/yr
[1840-1850] -1.26 %/yr
[1850-1860] -0.38 %/yr
[1860-1870] +2.4 %/yr
[1870-1880] +1.47 %/yr
[1880-1890] -5.26 %/yr
[1890-1900] +3.92 %/yr
[1900-1910] +0.07 %/yr
[1910-1920] +2.04 %/yr
[1920-1930] -0.7 %/yr
[1930-1940] +1.83 %/yr
[1940-1950] +3.13 %/yr
[1950-1960] +2.76 %/yr
[1960-1970] +1.36 %/yr
[1970-1980] +1.13 %/yr
[1980-1990] +0.64 %/yr
[1990-2000] +0.49 %/yr
[2000-2005] +1.36 %/yr
[2005-2010] +1.1 %/yr
[2010-2014] +0.07 %/yr
Looking for settlements in Charleston County? Visit this page: Settlements in Charleston County, SC
Population of Charleston County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 11882 | 11417 | 23,299 |
| 5 to 9 | 11196 | 10973 | 22,169 |
| 10 to 14 | 10313 | 9854 | 20,167 |
| 15 to 19 | 10436 | 10636 | 21,072 |
| 20 to 24 | 14545 | 13723 | 28,268 |
| 25 to 29 | 17251 | 18074 | 35,325 |
| 30 to 34 | 15199 | 15517 | 30,716 |
| 35 to 39 | 12052 | 12015 | 24,067 |
| 40 to 44 | 11434 | 11506 | 22,940 |
| 45 to 49 | 11138 | 11679 | 22,817 |
| 50 to 54 | 12387 | 13622 | 26,009 |
| 55 to 59 | 11774 | 13693 | 25,467 |
| 60 to 64 | 10806 | 12720 | 23,526 |
| 65 to 69 | 9295 | 10625 | 19,920 |
| 70 to 74 | 6154 | 7379 | 13,533 |
| 75 to 79 | 3850 | 4823 | 8,673 |
| 80 to 84 | 2609 | 3718 | 6,327 |
| 85+ | 2207 | 4513 | 6,720 |
Charleston 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 | 173784 | 187692 | 361,476 |
| WAC | 129775 | 133123 | 262,898 |
| WA | 127333 | 130561 | 257,894 |
| NHWAC | 120485 | 125608 | 246,093 |
| NHWA | 118369 | 123299 | 241,668 |
| BAC | 51740 | 60404 | 112,144 |
| NHBAC | 50760 | 59430 | 110,190 |
| BA | 50311 | 58817 | 109,128 |
| NHBA | 49532 | 58001 | 107,533 |
| H | 10744 | 8795 | 19,539 |
| HWAC | 9290 | 7515 | 16,805 |
| HWA | 8964 | 7262 | 16,226 |
| AAC | 3873 | 4203 | 8,076 |
| NHAAC | 3688 | 4031 | 7,719 |
| AA | 2975 | 3277 | 6,252 |
| NHAA | 2872 | 3194 | 6,066 |
| TOM | 2789 | 2948 | 5,737 |
| NHTOM | 2413 | 2653 | 5,066 |
| IAC | 1897 | 1714 | 3,611 |
| NHIAC | 1263 | 1314 | 2,577 |
| HBAC | 980 | 974 | 1,954 |
| HBA | 779 | 816 | 1,595 |
| IA | 902 | 691 | 1,593 |
| HIAC | 634 | 400 | 1,034 |
| NHIA | 459 | 424 | 883 |
| HIA | 443 | 267 | 710 |
| NAC | 355 | 318 | 673 |
| HTOM | 376 | 295 | 671 |
| NHNAC | 247 | 222 | 469 |
| NA | 218 | 193 | 411 |
| HAAC | 185 | 172 | 357 |
| NHNA | 139 | 121 | 260 |
| HNAC | 108 | 96 | 204 |
| HAA | 103 | 83 | 186 |
| HNA | 79 | 72 | 151 |
• Berkeley County population
28.1 mi, 
358°
• Beaufort County
53.1 mi, 
234°
• Dorchester County
33.1 mi, 
305°
• Orangeburg County
66.4 mi, 311°
• Georgetown County
56.7 mi, 
41°
• Colleton County
41.5 mi, 
273°
• Clarendon County
61.8 mi, 
345°
• Williamsburg County
58.5 mi, 
12°
• Jasper County
67.8 mi, 
247°
• Hampton County
69.8 mi, 268°
[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 6 South Carolina Notes
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