Last official estimated population of Litchfield County was 189,742 (year 2014)[1]. This was 0.06% of total US population and 5.3% of total Connecticut state population. Area of Litchfield County is 944.6 mi² (=2446.4 km²), in this year population density was 200.88 p/mi². If population growth rate would be same as in period 2010-2014 (-0.02%/yr), Litchfield County population in 2026 would be 189,188 [0].
Historical population of Litchfield 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] +0.62 %/yr
[1800-1810] +0.04 %/yr
[1810-1820] -0.03 %/yr
[1820-1830] +0.38 %/yr
[1830-1840] -0.58 %/yr
[1840-1850] +1.13 %/yr
[1850-1860] +0.45 %/yr
[1860-1870] +0.29 %/yr
[1870-1880] +0.66 %/yr
[1880-1890] +0.28 %/yr
[1890-1900] +1.75 %/yr
[1900-1910] +0.99 %/yr
[1910-1920] +0.82 %/yr
[1920-1930] +0.8 %/yr
[1930-1940] +0.53 %/yr
[1940-1950] +1.28 %/yr
[1950-1960] +1.94 %/yr
[1960-1970] +1.86 %/yr
[1970-1980] +0.85 %/yr
[1980-1990] +1.05 %/yr
[1990-2000] +0.46 %/yr
[2000-2005] +0.73 %/yr
[2005-2010] +0.11 %/yr
[2010-2014] -0.02 %/yr
Looking for settlements in Litchfield County? Visit this page: Settlements in Litchfield County, CT
Population of Litchfield County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 4081 | 3763 | 7,844 |
| 5 to 9 | 4868 | 4543 | 9,411 |
| 10 to 14 | 5843 | 5447 | 11,290 |
| 15 to 19 | 5987 | 5563 | 11,550 |
| 20 to 24 | 5096 | 4741 | 9,837 |
| 25 to 29 | 4626 | 4355 | 8,981 |
| 30 to 34 | 4674 | 4501 | 9,175 |
| 35 to 39 | 4432 | 4750 | 9,182 |
| 40 to 44 | 5644 | 5898 | 11,542 |
| 45 to 49 | 7137 | 7396 | 14,533 |
| 50 to 54 | 8098 | 8593 | 16,691 |
| 55 to 59 | 8254 | 8519 | 16,773 |
| 60 to 64 | 7006 | 7048 | 14,054 |
| 65 to 69 | 5635 | 5805 | 11,440 |
| 70 to 74 | 3875 | 4327 | 8,202 |
| 75 to 79 | 2477 | 2950 | 5,427 |
| 80 to 84 | 1712 | 2405 | 4,117 |
| 85+ | 1693 | 3251 | 4,944 |
Litchfield 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 |
| WAC | 87354 | 90071 | 177,425 |
| NH | 86032 | 88876 | 174,908 |
| WA | 85944 | 88762 | 174,706 |
| NHWAC | 82879 | 85677 | 168,556 |
| NHWA | 81719 | 84597 | 166,316 |
| H | 5106 | 4979 | 10,085 |
| HWAC | 4475 | 4394 | 8,869 |
| HWA | 4225 | 4165 | 8,390 |
| BAC | 2520 | 2228 | 4,748 |
| AAC | 1928 | 2173 | 4,101 |
| NHAAC | 1854 | 2108 | 3,962 |
| NHBAC | 1936 | 1686 | 3,622 |
| BA | 1840 | 1564 | 3,404 |
| AA | 1511 | 1812 | 3,323 |
| NHAA | 1471 | 1774 | 3,245 |
| TOM | 1504 | 1407 | 2,911 |
| NHBA | 1408 | 1175 | 2,583 |
| NHTOM | 1235 | 1158 | 2,393 |
| IAC | 773 | 724 | 1,497 |
| HBAC | 584 | 542 | 1,126 |
| NHIAC | 564 | 518 | 1,082 |
| HBA | 432 | 389 | 821 |
| IA | 277 | 261 | 538 |
| HTOM | 269 | 249 | 518 |
| HIAC | 209 | 206 | 415 |
| NHIA | 167 | 142 | 309 |
| NAC | 127 | 114 | 241 |
| HIA | 110 | 119 | 229 |
| NHNAC | 79 | 81 | 160 |
| HAAC | 74 | 65 | 139 |
| NA | 62 | 49 | 111 |
| HNAC | 48 | 33 | 81 |
| HAA | 40 | 38 | 78 |
| NHNA | 32 | 30 | 62 |
| HNA | 30 | 19 | 49 |
• Fairfield County population
39.6 mi, 
189°
• Hartford County
25.9 mi, 
87°
• New Haven County
35.1 mi, 
150°
• Hampden County
38.9 mi, 
52°
• Dutchess County
26.1 mi, 
264°
• Middlesex County
44.4 mi, 
123°
• Tolland County
46.3 mi, 
84°
• Berkshire County
40.3 mi, 
1°
• Putnam County
36.4 mi, 
226°
• Columbia County
37.4 mi, 
327°
[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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