Last official estimated population of Hartford County was 895,197 (year 2014)[1]. This was 0.281% of total US population and 24.9% of total Connecticut state population. Area of Hartford County is 750.6 mi² (=1944.1 km²), in this year population density was 1,192.62 p/mi². If population growth rate would be same as in period 2010-2014 (+0.03%/yr), Hartford County population in 2025 would be 898,458 [0].
Historical population of Hartford 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] +1.03 %/yr
[1800-1810] +0.6 %/yr
[1810-1820] +0.55 %/yr
[1820-1830] +0.79 %/yr
[1830-1840] +0.85 %/yr
[1840-1850] +2.32 %/yr
[1850-1860] +2.55 %/yr
[1860-1870] +1.94 %/yr
[1870-1880] +1.41 %/yr
[1880-1890] +1.62 %/yr
[1890-1900] +2.88 %/yr
[1900-1910] +2.5 %/yr
[1910-1920] +2.99 %/yr
[1920-1930] +2.28 %/yr
[1930-1940] +0.67 %/yr
[1940-1950] +1.83 %/yr
[1950-1960] +2.48 %/yr
[1960-1970] +1.71 %/yr
[1970-1980] -0.11 %/yr
[1980-1990] +0.53 %/yr
[1990-2000] +0.06 %/yr
[2000-2005] +0.48 %/yr
[2005-2010] +0.36 %/yr
[2010-2014] +0.03 %/yr
Looking for settlements in Hartford County? Visit this page: Settlements in Hartford County, CT
Population of Hartford County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 24747 | 24142 | 48,889 |
| 5 to 9 | 26781 | 26004 | 52,785 |
| 10 to 14 | 29328 | 27739 | 57,067 |
| 15 to 19 | 30719 | 29413 | 60,132 |
| 20 to 24 | 30542 | 28112 | 58,654 |
| 25 to 29 | 29731 | 28662 | 58,393 |
| 30 to 34 | 28944 | 29378 | 58,322 |
| 35 to 39 | 26283 | 27165 | 53,448 |
| 40 to 44 | 27760 | 29222 | 56,982 |
| 45 to 49 | 30968 | 32514 | 63,482 |
| 50 to 54 | 33448 | 35911 | 69,359 |
| 55 to 59 | 31836 | 34171 | 66,007 |
| 60 to 64 | 25637 | 28537 | 54,174 |
| 65 to 69 | 20197 | 23719 | 43,916 |
| 70 to 74 | 14021 | 17137 | 31,158 |
| 75 to 79 | 9661 | 13099 | 22,760 |
| 80 to 84 | 7308 | 11380 | 18,688 |
| 85+ | 7727 | 16042 | 23,769 |
Hartford 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 | 360779 | 384705 | 745,484 |
| WAC | 343439 | 364070 | 707,509 |
| WA | 334565 | 354907 | 689,472 |
| NHWAC | 281444 | 300208 | 581,652 |
| NHWA | 275196 | 293821 | 569,017 |
| H | 74859 | 77642 | 152,501 |
| BAC | 72238 | 77870 | 150,108 |
| BA | 65808 | 70933 | 136,741 |
| HWAC | 61995 | 63862 | 125,857 |
| NHBAC | 60195 | 64541 | 124,736 |
| HWA | 59369 | 61086 | 120,455 |
| NHBA | 55900 | 59936 | 115,836 |
| AAC | 25166 | 25844 | 51,010 |
| NHAAC | 24070 | 24837 | 48,907 |
| AA | 22449 | 23266 | 45,715 |
| NHAA | 21859 | 22643 | 44,502 |
| HBAC | 12043 | 13329 | 25,372 |
| HBA | 9908 | 10997 | 20,905 |
| TOM | 10033 | 10408 | 20,441 |
| NHTOM | 7089 | 7365 | 14,454 |
| IAC | 4730 | 5233 | 9,963 |
| HTOM | 2944 | 3043 | 5,987 |
| NHIAC | 2335 | 2740 | 5,075 |
| HIAC | 2395 | 2493 | 4,888 |
| IA | 2165 | 2330 | 4,495 |
| HIA | 1547 | 1528 | 3,075 |
| HAAC | 1096 | 1007 | 2,103 |
| NAC | 1047 | 888 | 1,935 |
| NHIA | 618 | 802 | 1,420 |
| HAA | 590 | 623 | 1,213 |
| NA | 618 | 503 | 1,121 |
| HNAC | 646 | 451 | 1,097 |
| HNA | 501 | 365 | 866 |
| NHNAC | 401 | 437 | 838 |
| NHNA | 117 | 138 | 255 |
• Fairfield County population
51.7 mi, 
219°
• New Haven County
32.7 mi, 
195°
• Hampden County
23.4 mi, 
12°
• New London County
39.6 mi, 
125°
• Litchfield County
25.9 mi, 
267°
• Middlesex County
28 mi, 
157°
• Hampshire County
37 mi, 5°
• Tolland County
20.5 mi, 
79°
• Berkshire County
46.4 mi, 
327°
• Windham County
38.2 mi, 
88°
[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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