Last official estimated population of Lorain County was 301,478 (year 2014)[1]. This was 0.095% of total US population and 2.6% of total Ohio state population. Area of Lorain County is 923.3 mi² (=2391.5 km²), in this year population density was 326.51 p/mi². If population growth rate would be same as in period 2010-2014 (+0.01%/yr), Lorain County population in 2023 would be 301,753 [0].
Historical population of Lorain County for period 1830-2014 [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
[1830-1840] +12.48 %/yr
[1840-1850] +3.51 %/yr
[1850-1860] +1.32 %/yr
[1860-1870] +0.19 %/yr
[1870-1880] +1.6 %/yr
[1880-1890] +1.27 %/yr
[1890-1900] +3.13 %/yr
[1900-1910] +3.32 %/yr
[1910-1920] +1.77 %/yr
[1920-1930] +1.88 %/yr
[1930-1940] +0.29 %/yr
[1940-1950] +2.8 %/yr
[1950-1960] +3.91 %/yr
[1960-1970] +1.68 %/yr
[1970-1980] +0.68 %/yr
[1980-1990] -0.14 %/yr
[1990-2000] +0.49 %/yr
[2000-2005] +0.71 %/yr
[2005-2010] +0.44 %/yr
[2010-2014] +0.01 %/yr
Looking for settlements in Lorain County? Visit this page: Settlements in Lorain County, OH
Population of Lorain County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 8924 | 8254 | 17,178 |
| 5 to 9 | 9799 | 9204 | 19,003 |
| 10 to 14 | 10494 | 10006 | 20,500 |
| 15 to 19 | 10586 | 10046 | 20,632 |
| 20 to 24 | 9815 | 9002 | 18,817 |
| 25 to 29 | 8268 | 7828 | 16,096 |
| 30 to 34 | 8533 | 8703 | 17,236 |
| 35 to 39 | 9042 | 9098 | 18,140 |
| 40 to 44 | 9883 | 10051 | 19,934 |
| 45 to 49 | 10581 | 10356 | 20,937 |
| 50 to 54 | 11375 | 11788 | 23,163 |
| 55 to 59 | 11258 | 11693 | 22,951 |
| 60 to 64 | 9707 | 10264 | 19,971 |
| 65 to 69 | 7917 | 8716 | 16,633 |
| 70 to 74 | 5276 | 6316 | 11,592 |
| 75 to 79 | 3754 | 4741 | 8,495 |
| 80 to 84 | 2434 | 3684 | 6,118 |
| 85+ | 2287 | 4533 | 6,820 |
Lorain 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 | 135778 | 140304 | 276,082 |
| WAC | 133284 | 138582 | 271,866 |
| WA | 129430 | 134516 | 263,946 |
| NHWAC | 121035 | 126615 | 247,650 |
| NHWA | 117821 | 123205 | 241,026 |
| BAC | 16950 | 15686 | 32,636 |
| NHBAC | 15034 | 13673 | 28,707 |
| H | 14155 | 13979 | 28,134 |
| BA | 14219 | 12763 | 26,982 |
| HWAC | 12249 | 11967 | 24,216 |
| NHBA | 12746 | 11232 | 23,978 |
| HWA | 11609 | 11311 | 22,920 |
| TOM | 4086 | 4327 | 8,413 |
| NHTOM | 3391 | 3605 | 6,996 |
| AAC | 2185 | 2655 | 4,840 |
| NHAAC | 2028 | 2468 | 4,496 |
| HBAC | 1916 | 2013 | 3,929 |
| AA | 1557 | 2003 | 3,560 |
| IAC | 1692 | 1786 | 3,478 |
| NHAA | 1482 | 1905 | 3,387 |
| HBA | 1473 | 1531 | 3,004 |
| NHIAC | 1180 | 1269 | 2,449 |
| HTOM | 695 | 722 | 1,417 |
| IA | 547 | 570 | 1,117 |
| HIAC | 512 | 517 | 1,029 |
| NHIA | 311 | 324 | 635 |
| HIA | 236 | 246 | 482 |
| NAC | 200 | 214 | 414 |
| HAAC | 157 | 187 | 344 |
| NHNAC | 102 | 108 | 210 |
| HNAC | 98 | 106 | 204 |
| NA | 94 | 104 | 198 |
| HAA | 75 | 98 | 173 |
| HNA | 67 | 71 | 138 |
| NHNA | 27 | 33 | 60 |
• Cuyahoga County population
32.4 mi, 
46°
• Summit County
40 mi, 
123°
• Medina County
26.6 mi, 
146°
• Richland County
49.7 mi, 
202°
• Wayne County
44.8 mi, 
160°
• Erie County
19.6 mi, 
293°
• Sandusky County
50.2 mi, 
263°
• Huron County
29.6 mi, 
226°
• Ashland County
41.4 mi, 
186°
• Ottawa County
43.7 mi, 
279°
[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
See note 10 Ohio Notes
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