Table 1.  The Most Populous Counties and Incorporated Places in 2010 in Ohio:  2000 and 2010
(For information on confidentiality protection, nonsampling error, and definitions, see http://www.census.gov/prod/cen2010/pl94-171.pdf)
Population rank				Population		Change, 2000 to 2010
2010	2000		Geographic area	2000 1	2010	Number	Percent
			Ohio………...……………………………………………….	11 353 140	11 536 504	183 364	1.6
			COUNTY
1	1		Cuyahoga County…………………………………………….	1 393 978	1 280 122	- 113 856	-8.2
2	2		Franklin County…………………………………………….	1 068 978	1 163 414	94 436	8.8
3	3		Hamilton County………………………………………….	845 303	802 374	- 42 929	-5.1
4	5		Summit County…………………………………………….	542 899	541 781	- 1 118	-0.2
5	4		Montgomery County………………………………………	559 062	535 153	- 23 909	-4.3
6	6		Lucas County……………………………………………….	455 054	441 815	- 13 239	-2.9
7	7		Stark County……………………………………………….	378 098	375 586	- 2 512	-0.7
8	8		Butler County………………………………………………	332 807	368 130	35 323	10.6
9	9		Lorain County………………………………………………	284 664	301 356	16 692	5.9
10	10		Mahoning County…………………………………………….	257 555	238 823	- 18 732	-7.3
11	11		Lake County……………………………………………………	227 511	230 041	2 530	1.1
12	14		Warren County……………………………………………..	158 383	212 693	54 310	34.3
13	12		Trumbull County………………………………………………	225 116	210 312	- 14 804	-6.6
14	13		Clermont County…………………………………………..	177 977	197 363	19 386	10.9
15	25		Delaware County…………………………………………….	109 989	174 214	64 225	58.4
16	16		Medina County…………………………………………….	151 095	172 332	21 237	14.1
17	18		Licking County…………………………………………..	145 491	166 492	21 001	14.4
18	17		Greene County………………………………………………..	147 886	161 573	13 687	9.3
19	15		Portage County…………………………………………….	152 061	161 419	9 358	6.2
20	21		Fairfield County………………………………………………	122 759	146 156	23 397	19.1
			INCORPORATED PLACE
1	1		Columbus city………………………………………………	711 470	787 033	75 563	10.6
2	2		Cleveland city………………………………………………	478 403	396 815	- 81 588	-17.1
3	3		Cincinnati city………………………………………………	331 285	296 943	- 34 342	-10.4
4	4		Toledo city……………………………………………………	313 619	287 208	- 26 411	-8.4
5	5		Akron city…………………………………………………..	217 074	199 110	- 17 964	-8.3
6	6		Dayton city………………………………………………….	166 179	141 527	- 24 652	-14.8
7	7		Parma city…………………………………………………..	85 655	81 601	- 4 054	-4.7
8	9		Canton city…………………………………………………	80 806	73 007	- 7 799	-9.7
9	8		Youngstown city……………………………………………	82 026	66 982	- 15 044	-18.3
10	10		Lorain city…………………………………………………..	68 652	64 097	- 4 555	-6.6
11	12		Hamilton city………………………………………………..	60 690	62 477	1 787	2.9
12	11		Springfield city…………………………………………………	65 358	60 608	- 4 750	-7.3
13	13		Kettering city……………………………………………….	57 502	56 163	- 1 339	-2.3
14	15		Elyria city……………………………………………………	55 953	54 533	- 1 420	-2.5
15	14		Lakewood city……………………………………………….	56 646	52 131	- 4 515	-8.0
16	20		Cuyahoga Falls city………………………………………………………….	49 374	49 652	278	0.6
17	16		Euclid city……………………………………………………	52 717	48 920	- 3 797	-7.2
18	17		Middletown city……………………………………………….	51 605	48 694	- 2 911	-5.6
19	21		Mansfield city………………………………………………….	49 346	47 821	- 1 525	-3.1
20	23		Newark city……………………………………………………	46 279	47 573	1 294	2.8
1 Census 2000 counts are as published in Census 2000 reports and thus do not include any changes published subsequently due to boundary changes or to the Count Question Resolution program.
Source:  U.S. Census Bureau, Census 2000 Redistricting Data (Public Law 94-171) Summary File, Table PL1, and 2010 Census Redistricting Data (Public Law 94-171) Summary File, Table P1.