New 2012 metro and county population estimates have been released by the US Census, so we’ll break down the numbers and see if any trends pop out.

First the statewide county maps for numerical change for 2010-2011 and 2011-2012.


Some good and bad with these. The bad is that fewer counties were estimated to be growing from 2011-2012 than were in 2010-2011. The good news it that central core counties improved their growth or slowed their losses, such as Franklin, Cuyahoga and Hamilton. This may mean that population is consolidating around urban cores rather than being spread out… or it may just mean that more counties are losing population.

Top 10 Counties with Greatest Numerical Growth
1. Franklin: +16,273
2. Delaware: +2,444
3. Warren: +1,893
4. Hamilton: +1,350
5. Wood: +1,291
6. Butler: +657
7. Clermont: +619
8. Hancock: +560
9. Stark: +540
10. Geauga: +362

If we take every county estimate, Ohio grew by 10,502, which is a slight improvement from 2011′s 8,447, which itself was faster than 2010′s 7,608. Still very slow, but seemingly getting a bit better each year.

As far as the metropolitan areas, their boundaries were changed last week as new definitions for what constitutes a metro area were introduced. This produced some rather drastic changes to metro areas and their populations.

Old and New Metro Boundaries and their Old and New Populations
Akron: Did not change boundaries and still consists of Summit and Portage counties.
2011: 702,854
2012: 702,262

Canton: Did not change and is still Stark and Carroll counties.
2011: 403,164
2012: 403,455

Cincinnati: Added Union County, Indiana, but dropped Franklin County, Indiana.
2011: 2,122,330
2012: 2,128,603

Cleveland: Did not change and is still Cuyahoga, Lake, Lorain, Geauga and Medina counties.
2011: 2,068,397
2012: 2,063,535

Columbus: Added Perry and Hocking Counties.
2011: 1,925,137
2012: 1,944,002

Dayton: Dropped Preble County.
2011: 801,040
2012: 800,972

Toledo: Dropped Ottawa County.
2011: 609,320
2012: 608,711

Youngstown: Did not change, still Mahoning, Trumbull and Mercer County, PA.
2011: 561,697
2012: 558,206

As you can see, 5 of the 8 are losing population, though most had slower losses in 2012 than they did in 2011. This may also be a sign of population moving toward the urban centers, or again, could just be a blip.

One of the interesting pieces of data about the metro areas is the section on components of population change, meaning where did the growth or loss come from.

Total Metro Births July 1, 2011 to July 1, 2012 and Rank
1. Cincinnati: +27,374
2. Columbus: +25,910
3. Cleveland: +22,484
4. Dayton: +9,414
5. Akron: +7,418
6. Toledo: +7,285
7. Youngstown: +5,446

Total Metro Deaths July 1, 2011 to July 1, 2012 and Rank
1. Cleveland: -20,290
2. Cincinnati: -18,204
3. Columbus: -14,457
4. Dayton: -7,930
5. Youngstown: -6,811
6. Akron: -6,756
7. Toledo: -5,678

Natural Change (Births vs Deaths) July 1,2011 to July 1, 2012 and Rank
1. Columbus: +11,453
2. Cincinnati: +9,170
3. Cleveland: +2,194
4. Toledo: +1,607
5. Dayton: +1,484
6. Akron: +662
7. Youngstown: -1,365

Domestic Migration July 1, 2011 to July 1, 2012 and Rank
1. Columbus: +2,688
2. Akron: -2,248
3. Youngstown: -2,341
4. Dayton: -2,717
5. Toledo: -2,931
6. Cincinnati: -6,036
7. Cleveland: -10,579

Columbus is the only metro seeing positive domestic migration in Ohio.

International Migration July 1, 2011 to July 1, 2012 and Rank
1. Columbus: +4,729
2. Cleveland: +3,555
3. Cincinnati: +3,217
4. Dayton: +1,175
5. Akron: +1,009
6. Youngstown: +778
7. Toledo: +676

Total In-Migration July 1, 2011 to July 1, 2012 and Rank
1. Columbus: +7,417
2. Youngstown: -974
3. Akron: -1,239
4. Dayton: -1,542
5. Toledo: -2,255
6. Cincinnati: -2,819
7. Cleveland: -7,024

Canton is the only other Ohio metro that saw a net postive in-migration for the time period besides Columbus.

For more information on county and metro areas, follow the below links:
Metro Area Demographics/
Franklin County Demographics