Last official estimated population of Somerset County was 26,483 (year 2014)[1]. This was 0.008% of total US population and 0.4% of total Maryland state population. Area of Somerset County is 610.4 mi² (=1580.8 km²), in this year population density was 43.39 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Somerset County population in 2026 would be 26,522 [0].
Historical population of Somerset 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] +1.07 %/yr
[1800-1810] -0.09 %/yr
[1810-1820] +1.31 %/yr
[1820-1830] +0.3 %/yr
[1830-1840] -0.33 %/yr
[1840-1850] +1.42 %/yr
[1850-1860] +1.08 %/yr
[1860-1870] -3.13 %/yr
[1870-1880] +1.77 %/yr
[1880-1890] +1.09 %/yr
[1890-1900] +0.71 %/yr
[1900-1910] +0.2 %/yr
[1910-1920] -0.72 %/yr
[1920-1930] -0.51 %/yr
[1930-1940] -1.09 %/yr
[1940-1950] -0.11 %/yr
[1950-1960] -0.55 %/yr
[1960-1970] -0.36 %/yr
[1970-1980] +0.14 %/yr
[1980-1990] +2.02 %/yr
[1990-2000] +0.54 %/yr
[2000-2005] +0.83 %/yr
[2005-2010] +0.52 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Somerset County? Visit this page: Settlements in Somerset County, MD
Population of Somerset County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 660 | 683 | 1,343 |
| 5 to 9 | 620 | 574 | 1,194 |
| 10 to 14 | 572 | 557 | 1,129 |
| 15 to 19 | 984 | 1015 | 1,999 |
| 20 to 24 | 1902 | 1666 | 3,568 |
| 25 to 29 | 1111 | 568 | 1,679 |
| 30 to 34 | 987 | 601 | 1,588 |
| 35 to 39 | 884 | 514 | 1,398 |
| 40 to 44 | 927 | 546 | 1,473 |
| 45 to 49 | 920 | 617 | 1,537 |
| 50 to 54 | 982 | 791 | 1,773 |
| 55 to 59 | 853 | 839 | 1,692 |
| 60 to 64 | 789 | 752 | 1,541 |
| 65 to 69 | 640 | 638 | 1,278 |
| 70 to 74 | 479 | 503 | 982 |
| 75 to 79 | 319 | 367 | 686 |
| 80 to 84 | 215 | 294 | 509 |
| 85+ | 174 | 316 | 490 |
Somerset 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 | 13541 | 11371 | 24,912 |
| WAC | 7377 | 6947 | 14,324 |
| WA | 7149 | 6711 | 13,860 |
| NHWAC | 7040 | 6571 | 13,611 |
| NHWA | 6827 | 6358 | 13,185 |
| BAC | 6540 | 4888 | 11,428 |
| NHBAC | 6450 | 4790 | 11,240 |
| BA | 6367 | 4698 | 11,065 |
| NHBA | 6290 | 4612 | 10,902 |
| H | 477 | 470 | 947 |
| HWAC | 337 | 376 | 713 |
| HWA | 322 | 353 | 675 |
| TOM | 261 | 274 | 535 |
| NHTOM | 240 | 250 | 490 |
| AAC | 204 | 163 | 367 |
| NHAAC | 163 | 158 | 321 |
| AA | 160 | 111 | 271 |
| IAC | 144 | 117 | 261 |
| NHAA | 123 | 110 | 233 |
| NHIAC | 118 | 104 | 222 |
| HBAC | 90 | 98 | 188 |
| HBA | 77 | 86 | 163 |
| IA | 74 | 40 | 114 |
| NHIA | 57 | 37 | 94 |
| HAAC | 41 | 5 | 46 |
| HTOM | 21 | 24 | 45 |
| NAC | 25 | 19 | 44 |
| HIAC | 26 | 13 | 39 |
| HAA | 37 | 1 | 38 |
| NHNAC | 20 | 16 | 36 |
| HIA | 17 | 3 | 20 |
| NA | 7 | 7 | 14 |
| HNAC | 5 | 3 | 8 |
| NHNA | 4 | 4 | 8 |
| HNA | 3 | 3 | 6 |
• St. Mary's County population
38.1 mi,
285°
• Wicomico County
23.5 mi,
30°
• Calvert County
48 mi,
310°
• Worcester County
31.2 mi,
70°
• Accomack County
21.9 mi,
166°
• Dorchester County
26.7 mi,
336°
• Northumberland County
32.4 mi,
242°
• Lancaster County
39.8 mi,
230°
• Middlesex County
49 mi,
228°
• Richmond County
48.6 mi,
259°
[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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