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Last official estimated population of Dorchester County was 32,681 (year 2014)[1]. This was 0.01% of total US population and 0.5% of total Maryland state population. Area of Dorchester County is 983.0 mi² (=2545.9 km²), in this year population density was 33.25 p/mi². If population growth rate would be same as in period 2010-2014 (+0.05%/yr), Dorchester County population in 2025 would be 32,855 [0].
Historical population of Dorchester 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] +0.29 %/yr
[1800-1810] +1.03 %/yr
[1810-1820] -0.19 %/yr
[1820-1830] +0.51 %/yr
[1830-1840] +0.08 %/yr
[1840-1850] +0.02 %/yr
[1850-1860] +0.81 %/yr
[1860-1870] -0.5 %/yr
[1870-1880] +1.73 %/yr
[1880-1890] +0.73 %/yr
[1890-1900] +1.19 %/yr
[1900-1910] +0.25 %/yr
[1910-1920] -0.27 %/yr
[1920-1930] -0.39 %/yr
[1930-1940] +0.44 %/yr
[1940-1950] -0.07 %/yr
[1950-1960] +0.65 %/yr
[1960-1970] -0.09 %/yr
[1970-1980] +0.41 %/yr
[1980-1990] -0.13 %/yr
[1990-2000] +0.14 %/yr
[2000-2005] +0.48 %/yr
[2005-2010] +0.75 %/yr
[2010-2014] +0.05 %/yr
Looking for settlements in Dorchester County? Visit this page: Settlements in Dorchester County, MD
Population of Dorchester County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 1037 | 985 | 2,022 |
| 5 to 9 | 983 | 981 | 1,964 |
| 10 to 14 | 939 | 931 | 1,870 |
| 15 to 19 | 902 | 785 | 1,687 |
| 20 to 24 | 891 | 1004 | 1,895 |
| 25 to 29 | 896 | 1076 | 1,972 |
| 30 to 34 | 848 | 923 | 1,771 |
| 35 to 39 | 792 | 867 | 1,659 |
| 40 to 44 | 826 | 974 | 1,800 |
| 45 to 49 | 1034 | 1094 | 2,128 |
| 50 to 54 | 1196 | 1288 | 2,484 |
| 55 to 59 | 1221 | 1369 | 2,590 |
| 60 to 64 | 1072 | 1239 | 2,311 |
| 65 to 69 | 975 | 1055 | 2,030 |
| 70 to 74 | 740 | 880 | 1,620 |
| 75 to 79 | 529 | 654 | 1,183 |
| 80 to 84 | 331 | 447 | 778 |
| 85+ | 271 | 543 | 814 |
Dorchester 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 | 14740 | 16335 | 31,075 |
| WAC | 10993 | 11758 | 22,751 |
| WA | 10694 | 11466 | 22,160 |
| NHWAC | 10395 | 11149 | 21,544 |
| NHWA | 10136 | 10890 | 21,026 |
| BAC | 4427 | 5208 | 9,635 |
| NHBAC | 4286 | 5076 | 9,362 |
| BA | 4228 | 5001 | 9,229 |
| NHBA | 4111 | 4890 | 9,001 |
| H | 743 | 760 | 1,503 |
| HWAC | 598 | 609 | 1,207 |
| HWA | 558 | 576 | 1,134 |
| TOM | 325 | 320 | 645 |
| NHTOM | 282 | 284 | 566 |
| AAC | 212 | 247 | 459 |
| NHAAC | 204 | 237 | 441 |
| AA | 161 | 210 | 371 |
| NHAA | 159 | 203 | 362 |
| IAC | 155 | 179 | 334 |
| HBAC | 141 | 132 | 273 |
| NHIAC | 115 | 137 | 252 |
| HBA | 117 | 111 | 228 |
| IA | 67 | 93 | 160 |
| NHIA | 46 | 64 | 110 |
| HIAC | 40 | 42 | 82 |
| HTOM | 43 | 36 | 79 |
| NAC | 28 | 31 | 59 |
| NHNAC | 26 | 27 | 53 |
| HIA | 21 | 29 | 50 |
| HAAC | 8 | 10 | 18 |
| NA | 8 | 5 | 13 |
| NHNA | 6 | 4 | 10 |
| HAA | 2 | 7 | 9 |
| HNAC | 2 | 4 | 6 |
| HNA | 2 | 1 | 3 |
• Sussex County population
41.9 mi, 
66°
• St. Mary's County
29.9 mi, 
241°
• Wicomico County
22.9 mi, 
100°
• Calvert County
26.9 mi, 
283°
• Worcester County
42.5 mi, 
109°
• Queen Anne's County
42.3 mi, 
357°
• Talbot County
23.2 mi, 
342°
• Caroline County
32.7 mi, 
20°
• Somerset County
26.7 mi, 
156°
• Northumberland County
43.5 mi, 
204°
[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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