Last official estimated population of Sagadahoc County was 35,221 (year 2014)[1]. This was 0.011% of total US population and 2.6% of total Maine state population. Area of Sagadahoc County is 370.0 mi² (=958.4 km²), in this year population density was 95.18 p/mi². If population growth rate would be same as in period 2010-2014 (-0.05%/yr), Sagadahoc County population in 2026 would be 35,006 [0].
Historical population of Sagadahoc County for period 1860-2014 [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

[1860-1870] -1.46 %/yr
[1870-1880] +0.25 %/yr
[1880-1890] +0.09 %/yr
[1890-1900] +0.44 %/yr
[1900-1910] -0.9 %/yr
[1910-1920] +2.17 %/yr
[1920-1930] -3.03 %/yr
[1930-1940] +1.23 %/yr
[1940-1950] +0.9 %/yr
[1950-1960] +0.87 %/yr
[1960-1970] +0.29 %/yr
[1970-1980] +2.07 %/yr
[1980-1990] +1.54 %/yr
[1990-2000] +0.48 %/yr
[2000-2005] +0.35 %/yr
[2005-2010] -0.29 %/yr
[2010-2014] -0.05 %/yr
Looking for settlements in Sagadahoc County? Visit this page: Settlements in Sagadahoc County, ME
Population of Sagadahoc County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 802 | 829 | 1,631 |
| 5 to 9 | 999 | 913 | 1,912 |
| 10 to 14 | 1056 | 991 | 2,047 |
| 15 to 19 | 979 | 907 | 1,886 |
| 20 to 24 | 865 | 823 | 1,688 |
| 25 to 29 | 906 | 955 | 1,861 |
| 30 to 34 | 956 | 997 | 1,953 |
| 35 to 39 | 890 | 996 | 1,886 |
| 40 to 44 | 1059 | 1160 | 2,219 |
| 45 to 49 | 1203 | 1265 | 2,468 |
| 50 to 54 | 1422 | 1534 | 2,956 |
| 55 to 59 | 1412 | 1552 | 2,964 |
| 60 to 64 | 1306 | 1423 | 2,729 |
| 65 to 69 | 1085 | 1170 | 2,255 |
| 70 to 74 | 855 | 903 | 1,758 |
| 75 to 79 | 550 | 604 | 1,154 |
| 80 to 84 | 346 | 484 | 830 |
| 85+ | 302 | 546 | 848 |
Sagadahoc 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 | 16711 | 17795 | 34,506 |
| WAC | 16619 | 17654 | 34,273 |
| NHWAC | 16370 | 17415 | 33,785 |
| WA | 16348 | 17351 | 33,699 |
| NHWA | 16116 | 17126 | 33,242 |
| TOM | 282 | 309 | 591 |
| NHTOM | 263 | 295 | 558 |
| H | 282 | 257 | 539 |
| BAC | 274 | 240 | 514 |
| HWAC | 249 | 239 | 488 |
| NHBAC | 255 | 222 | 477 |
| AAC | 195 | 269 | 464 |
| HWA | 232 | 225 | 457 |
| NHAAC | 183 | 262 | 445 |
| IAC | 187 | 200 | 387 |
| NHIAC | 169 | 191 | 360 |
| AA | 135 | 186 | 321 |
| NHAA | 127 | 181 | 308 |
| BA | 160 | 130 | 290 |
| NHBA | 149 | 122 | 271 |
| IA | 64 | 74 | 138 |
| NHIA | 54 | 69 | 123 |
| HBAC | 19 | 18 | 37 |
| NAC | 16 | 18 | 34 |
| HTOM | 19 | 14 | 33 |
| HIAC | 18 | 9 | 27 |
| NHNAC | 10 | 17 | 27 |
| HAAC | 12 | 7 | 19 |
| HBA | 11 | 8 | 19 |
| HIA | 10 | 5 | 15 |
| HAA | 8 | 5 | 13 |
| HNAC | 6 | 1 | 7 |
| NA | 4 | 2 | 6 |
| NHNA | 2 | 2 | 4 |
| HNA | 2 | 0 | 2 |
• Cumberland County population
25.3 mi,
252°
• York County
53.3 mi,
230°
• Strafford County
73.5 mi,
234°
• Kennebec County
34.8 mi,
6°
• Androscoggin County
25 mi,
313°
• Oxford County
59.5 mi,
312°
• Carroll County
67.7 mi,
267°
• Knox County
41 mi,
77°
• Waldo County
53.6 mi,
40°
• Lincoln County
17.3 mi,
71°
[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
*Lincoln Maine Notes
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