Last official estimated population of Carroll County was 167,220 (year 2014)[1]. This was 0.052% of total US population and 2.8% of total Maryland state population. Area of Carroll County is 452.7 mi² (=1172.5 km²), in this year population density was 369.39 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Carroll County population in 2024 would be 167,435 [0].
Historical population of Carroll 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] +1.8 %/yr
[1850-1860] +1.75 %/yr
[1860-1870] +1.55 %/yr
[1870-1880] +0.8 %/yr
[1880-1890] +0.44 %/yr
[1890-1900] +0.45 %/yr
[1900-1910] +0.02 %/yr
[1910-1920] +0.09 %/yr
[1920-1930] +0.49 %/yr
[1930-1940] +0.82 %/yr
[1940-1950] +1.41 %/yr
[1950-1960] +1.63 %/yr
[1960-1970] +2.72 %/yr
[1970-1980] +3.39 %/yr
[1980-1990] +2.5 %/yr
[1990-2000] +2.03 %/yr
[2000-2005] +1.87 %/yr
[2005-2010] +0.19 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Carroll County? Visit this page: Settlements in Carroll County, MD
Population of Carroll County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 4146 | 4059 | 8,205 |
| 5 to 9 | 5094 | 4905 | 9,999 |
| 10 to 14 | 6098 | 5770 | 11,868 |
| 15 to 19 | 6275 | 5878 | 12,153 |
| 20 to 24 | 5489 | 5137 | 10,626 |
| 25 to 29 | 4805 | 4215 | 9,020 |
| 30 to 34 | 4378 | 4324 | 8,702 |
| 35 to 39 | 4199 | 4310 | 8,509 |
| 40 to 44 | 5317 | 5630 | 10,947 |
| 45 to 49 | 6705 | 6999 | 13,704 |
| 50 to 54 | 7582 | 7614 | 15,196 |
| 55 to 59 | 6441 | 6496 | 12,937 |
| 60 to 64 | 5064 | 5166 | 10,230 |
| 65 to 69 | 4249 | 4553 | 8,802 |
| 70 to 74 | 2920 | 3386 | 6,306 |
| 75 to 79 | 1796 | 2319 | 4,115 |
| 80 to 84 | 1259 | 1816 | 3,075 |
| 85+ | 1147 | 2289 | 3,436 |
Carroll 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 | 80299 | 82494 | 162,793 |
| WAC | 78088 | 80258 | 158,346 |
| WA | 76843 | 78985 | 155,828 |
| NHWAC | 75645 | 78049 | 153,694 |
| NHWA | 74530 | 76854 | 151,384 |
| BAC | 3936 | 3355 | 7,291 |
| NHBAC | 3721 | 3220 | 6,941 |
| BA | 3301 | 2679 | 5,980 |
| NHBA | 3153 | 2590 | 5,743 |
| H | 2665 | 2372 | 5,037 |
| HWAC | 2443 | 2209 | 4,652 |
| HWA | 2313 | 2131 | 4,444 |
| AAC | 1741 | 2093 | 3,834 |
| NHAAC | 1703 | 2059 | 3,762 |
| AA | 1251 | 1606 | 2,857 |
| NHAA | 1233 | 1588 | 2,821 |
| TOM | 1346 | 1381 | 2,727 |
| NHTOM | 1204 | 1296 | 2,500 |
| IAC | 523 | 497 | 1,020 |
| NHIAC | 422 | 423 | 845 |
| IA | 193 | 181 | 374 |
| HBAC | 215 | 135 | 350 |
| NHIA | 158 | 141 | 299 |
| HBA | 148 | 89 | 237 |
| HTOM | 142 | 85 | 227 |
| HIAC | 101 | 74 | 175 |
| NAC | 72 | 92 | 164 |
| NHNAC | 59 | 75 | 134 |
| HIA | 35 | 40 | 75 |
| HAAC | 38 | 34 | 72 |
| NA | 30 | 34 | 64 |
| NHNA | 21 | 25 | 46 |
| HAA | 18 | 18 | 36 |
| HNAC | 13 | 17 | 30 |
| HNA | 9 | 9 | 18 |
• Montgomery County population
31.1 mi, 
198°
• Baltimore County
22.8 mi, 
111°
• Baltimore city
28.2 mi, 
130°
• York County
29.1 mi, 
31°
• Howard County
22 mi, 
167°
• Harford County
38.2 mi, 
92°
• Cumberland County
43.6 mi, 
342°
• Frederick County
21.4 mi, 
252°
• Washington County
42.7 mi, 
273°
• Adams County
23.7 mi, 
333°
[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 3 Maryland Notes
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