Jefferson County, Indiana Cities (2025)

28 cities

City	Rank	2025 Pop. ↓	2020 Pop.	Change	Density	Area (mi²)	Type
Hanover township	1	21,607	18,342	2.69%	752	28.75	Township
Madison township	2	18,038	18,065	0.22%	314	57.42	Township
Madison	3	12,122	12,336	-0.35%	1,403	8.64	City
Madison township	4	10,523	10,193	1.1%	383	27.50	Township
Hanover township	5	5,721	5,573	0.67%	305	18.73	Township
Hanover	6	3,864	3,739	0.65%	1,740	2.22	Town
Madison township	7	2,964	3,028	-0.67%	81	36.64	Township
Madison township	8	2,873	2,913	-0.14%	82	34.95	Township
Hanover township	9	2,133	2,221	-1.25%	78	27.20	Township
Madison township	10	2,110	2,133	-0.05%	83	25.52	Township
Madison township	11	1,799	1,787	0.28%	35	52.09	Township
Madison township	12	1,718	1,663	0.7%	47	36.59	Township
Republican township	13	1,644	1,629	0.55%	60	27.45	Township
Graham township	14	1,588	1,580	0.38%	38	42.09	Township
Lancaster township	15	1,490	1,480	0.4%	46	32.18	Township
Saluda township	16	1,384	1,367	0.58%	37	37.40	Township
Madison township	17	1,263	1,283	-0.39%	28	44.56	Township
Madison township	18	1,202	1,163	0.75%	33	36.23	Township
Madison township	19	1,128	1,073	0.98%	32	35.28	Township
Smyrna township	20	1,095	1,093	0.27%	42	25.93	Township
Madison township	21	660	660	0.15%	25	26.04	Township
Madison township	22	632	634	0.16%	21	30.82	Township
Madison township	23	451	448	0%	22	20.87	Township
Madison township	24	352	361	-0.56%	16	21.65	Township
Dupont	25	337	341	-0.3%	334	1.01	Town
Canaan	26	163	70	7.24%	578	0.28	CDP
Brooksburg	27	70	72	0%	686	0.10	Town
Deputy	28	24	34	9.09%	324	0.07	CDP

Jefferson County Cities Summary

Hanover township is the largest city in Jefferson County, with a population of 21,607.