Last official estimated population of Calvert County was 88,940 (year 2014)[1]. This was 0.028% of total US population and 1.5% of total Maryland state population. Area of Calvert County is 345.1 mi² (=893.7 km²), in this year population density was 257.74 p/mi². If population growth rate would be same as in period 2010-2014 (+0.06%/yr), Calvert County population in 2026 would be 89,552 [0].
Historical population of Calvert 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] -0.42 %/yr
[1800-1810] -0.36 %/yr
[1810-1820] +0.08 %/yr
[1820-1830] +0.98 %/yr
[1830-1840] +0.36 %/yr
[1840-1850] +0.44 %/yr
[1850-1860] +0.8 %/yr
[1860-1870] -0.57 %/yr
[1870-1880] +0.66 %/yr
[1880-1890] -0.66 %/yr
[1890-1900] +0.36 %/yr
[1900-1910] +0.1 %/yr
[1910-1920] -0.58 %/yr
[1920-1930] -0.22 %/yr
[1930-1940] +0.96 %/yr
[1940-1950] +1.44 %/yr
[1950-1960] +2.72 %/yr
[1960-1970] +2.71 %/yr
[1970-1980] +5.29 %/yr
[1980-1990] +4.02 %/yr
[1990-2000] +3.79 %/yr
[2000-2005] +2.97 %/yr
[2005-2010] +0.56 %/yr
[2010-2014] +0.06 %/yr
Looking for settlements in Calvert County? Visit this page: Settlements in Calvert County, MD
Population of Calvert County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 2540 | 2425 | 4,965 |
| 5 to 9 | 2952 | 2770 | 5,722 |
| 10 to 14 | 3423 | 3424 | 6,847 |
| 15 to 19 | 3464 | 3271 | 6,735 |
| 20 to 24 | 2922 | 2625 | 5,547 |
| 25 to 29 | 2604 | 2402 | 5,006 |
| 30 to 34 | 2464 | 2563 | 5,027 |
| 35 to 39 | 2313 | 2518 | 4,831 |
| 40 to 44 | 2780 | 3062 | 5,842 |
| 45 to 49 | 3746 | 3854 | 7,600 |
| 50 to 54 | 4139 | 4328 | 8,467 |
| 55 to 59 | 3445 | 3524 | 6,969 |
| 60 to 64 | 2623 | 2649 | 5,272 |
| 65 to 69 | 2067 | 2159 | 4,226 |
| 70 to 74 | 1463 | 1471 | 2,934 |
| 75 to 79 | 838 | 1021 | 1,859 |
| 80 to 84 | 519 | 812 | 1,331 |
| 85+ | 448 | 985 | 1,433 |
Calvert 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 | 43192 | 44243 | 87,435 |
| WAC | 38028 | 38403 | 76,431 |
| WA | 36902 | 37261 | 74,163 |
| NHWAC | 36693 | 36977 | 73,670 |
| NHWA | 35665 | 35944 | 71,609 |
| BAC | 6408 | 6891 | 13,299 |
| NHBAC | 6224 | 6709 | 12,933 |
| BA | 5777 | 6207 | 11,984 |
| NHBA | 5646 | 6085 | 11,731 |
| H | 1558 | 1620 | 3,178 |
| HWAC | 1335 | 1426 | 2,761 |
| HWA | 1237 | 1317 | 2,554 |
| TOM | 1242 | 1280 | 2,522 |
| AAC | 1017 | 1320 | 2,337 |
| NHTOM | 1134 | 1159 | 2,293 |
| NHAAC | 981 | 1281 | 2,262 |
| AA | 600 | 901 | 1,501 |
| NHAA | 578 | 887 | 1,465 |
| IAC | 532 | 521 | 1,053 |
| NHIAC | 423 | 428 | 851 |
| IA | 193 | 175 | 368 |
| HBAC | 184 | 182 | 366 |
| NHIA | 140 | 139 | 279 |
| HBA | 131 | 122 | 253 |
| HTOM | 108 | 121 | 229 |
| HIAC | 109 | 93 | 202 |
| NAC | 90 | 107 | 197 |
| NHNAC | 83 | 91 | 174 |
| HIA | 53 | 36 | 89 |
| NA | 36 | 39 | 75 |
| HAAC | 36 | 39 | 75 |
| NHNA | 29 | 29 | 58 |
| HAA | 22 | 14 | 36 |
| HNAC | 7 | 16 | 23 |
| HNA | 7 | 10 | 17 |
• Prince George's County population
27.1 mi,
320°
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37.2 mi,
315°
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32.6 mi,
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26.5 mi,
262°
• Alexandria city
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• St. Mary's County
20.9 mi,
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• Talbot County
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• King George County
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• Westmoreland County
32.2 mi,
207°
[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
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