Stephenson County, Illinois Cities (2025)

29 cities

City	Rank	2025 Pop. ↓	2020 Pop.	Change	Density	Area (mi²)	Type
Freeport township	1	22,656	23,896	-1.05%	1,909	11.87	Township
Freeport	2	22,629	23,896	-1.11%	1,907	11.87	City
Lena	3	2,604	2,756	-1.14%	982	2.65	Village
Lake Summerset	4	2,132	1,958	0.28%	1,006	2.12	CDP
Rock Run township	5	2,075	2,182	-0.95%	43	47.82	Township
Harlem township	6	1,910	2,005	-0.98%	61	31.56	Township
Rock Grove township	7	1,420	1,493	-1.05%	47	30.29	Township
Loran township	8	1,283	1,350	-1.08%	37	34.82	Township
Ridott township	9	1,272	1,347	-1.17%	24	53.58	Township
Oneco township	10	1,214	1,283	-1.14%	44	27.46	Township
Buckeye township	11	1,130	1,198	-1.22%	31	36.11	Township
Florence township	12	1,112	1,169	-0.98%	33	33.84	Township
Willow Lake	13	1,042	752	7.09%	381	2.73	CDP
Dakota township	14	773	813	-0.9%	43	18	Township
Pearl City	15	744	783	-1.06%	1,152	0.65	Village
Orangeville	16	725	767	-1.09%	1,069	0.68	Village
Waddams township	17	688	730	-1.29%	19	35.81	Township
Cedarville	18	630	669	-1.25%	1,367	0.46	Village
Kent township	19	601	635	-1.15%	17	35.50	Township
Silver Creek township	20	595	623	-1%	17	34.79	Township
Davis	21	558	590	-1.06%	1,364	0.41	Village
Winslow township	22	539	569	-1.1%	19	28.73	Township
Dakota	23	470	499	-1.26%	1,888	0.25	Village
German Valley	24	407	432	-1.21%	875	0.47	Village
Erin township	25	363	380	-0.82%	20	18.15	Township
Rock City	26	276	295	-1.43%	2,029	0.14	Village
Winslow	27	266	283	-1.12%	581	0.46	Village
Jefferson township	28	237	248	-0.84%	13	18.16	Township
Ridott	29	120	127	-0.83%	1,500	0.08	Village

Stephenson County Cities Summary

Freeport township is the largest city in Stephenson County, with a population of 22,656.