Cities in Illinois by average household size, 2024

Cicero, IL had the highest average household size of 225 cities in 2024, at 3.4 persons per household. Charleston, IL had the lowest, at 1.9 persons per household. The median was 2.5 persons per household and the figure for Illinois was 2.5 persons per household. Source: the U.S. Census Bureau.

Highest3.4Cicero, IL

Lowest1.9Charleston, IL

Median2.5225 cities

Illinois2.5History

Top 40 cities, 2024

persons per household. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more). Retrieved 2026-10-12.

Full ranking

Rank	Cities	2024 persons per household	Change on 2023
1	Cicero, IL	3.4	+2.1%
2	West Chicago, IL	3.4	-0.6%
3	Hanover Park, IL	3.3	-0.6%
4	Carpentersville, IL	3.2	+0.3%
5	Plainfield, IL	3.2	-0.9%
6	Round Lake Beach, IL	3.2	+0.3%
7	Minooka, IL	3.1	+1%
8	Maywood, IL	3.1	-1%
9	Markham, IL	3.1	+2%
10	Bolingbrook, IL	3.1	-0.3%
11	Channahon, IL	3.1	-2.2%
12	Bellwood, IL	3.1	+2%
12	New Lenox, IL	3.1	+2%
12	Romeoville, IL	3.1	-1.3%
15	Franklin Park, IL	3	-1.9%
15	Manhattan, IL	3	-2.3%
17	Frankfort, IL	3	-1.9%
18	Homer Glen, IL	3	-1%
18	Montgomery, IL	3	+0.7%
20	Pingree Grove, IL	3	-1.3%
20	Western Springs, IL	3	+0.7%
22	Burbank, IL	3	+1%
22	Winnetka, IL	3	+2%
24	Lake in the Hills, IL	3	+1.7%
24	Streamwood, IL	3	-0.3%
26	Hinsdale, IL	3	-0.7%
26	Oswego, IL	3	+1%
28	Campton Hills, IL	2.9	-3%
29	Glendale Heights, IL	2.9	+1.7%
29	Plano, IL	2.9	-2.3%
31	Summit, IL	2.9	-2.7%
32	Aurora, IL	2.9	-1.4%
33	Round Lake, IL	2.9	-2%
34	Joliet, IL	2.9	-0.3%
34	Mahomet, IL	2.9	-3.7%
34	Melrose Park, IL	2.9	-1.4%
37	Elgin, IL	2.9	-0.3%
38	Yorkville, IL	2.9	+2.9%
39	Bartlett, IL	2.9	+1.1%
39	Country Club Hills, IL	2.9	-5%
41	Hazel Crest, IL	2.8	-1.4%
42	Chicago Heights, IL	2.8	-1.1%
43	Antioch, IL	2.8	-1.4%
43	Lincolnwood, IL	2.8	-1.4%
45	Cahokia Heights, IL	2.8	+3.7%
46	Lindenhurst, IL	2.8	-0.7%
47	Northlake, IL	2.8	+1.5%
48	Addison, IL	2.8	+2.2%
48	Cary, IL	2.8	-1.8%
48	South Holland, IL	2.8	+0.7%
48	Wauconda, IL	2.8	+1.5%
52	Hoffman Estates, IL	2.8	+0.4%
52	Riverdale, IL	2.8	+1.5%
54	Algonquin, IL	2.7	0%
54	Beach Park, IL	2.7	-6.5%
54	South Elgin, IL	2.7	-2.5%
54	Zion, IL	2.7	+2.2%
58	Lemont, IL	2.7	-0.4%
59	Crystal Lake, IL	2.7	+1.1%
59	Mundelein, IL	2.7	0%
59	Waukegan, IL	2.7	-1.8%
62	Berwyn, IL	2.7	-1.5%
62	Carol Stream, IL	2.7	-0.7%
62	La Grange, IL	2.7	+0.4%
62	Mokena, IL	2.7	-1.5%
62	North Chicago, IL	2.7	+1.9%
67	Naperville, IL	2.7	-0.4%
68	Bridgeview, IL	2.7	+3.1%
68	Homewood, IL	2.7	-1.5%
68	Skokie, IL	2.7	-2.2%
71	Evergreen Park, IL	2.7	+1.1%
71	Villa Park, IL	2.7	0%
73	Shorewood, IL	2.7	-3.6%
73	Wilmette, IL	2.7	-0.4%
75	Harvey, IL	2.7	-3.3%
75	Lake Zurich, IL	2.7	-0.4%
75	Lockport, IL	2.7	-1.9%
75	Morton Grove, IL	2.7	-1.5%
75	Troy, IL	2.7	+3.5%
80	Elmhurst, IL	2.6	+0.8%
80	Glen Ellyn, IL	2.6	+1.5%
80	Machesney Park, IL	2.6	-0.4%
83	Buffalo Grove, IL	2.6	-0.8%
83	Lake Forest, IL	2.6	+0.4%
83	Roselle, IL	2.6	-0.4%
86	Bensenville, IL	2.6	-2.6%
86	Chicago Ridge, IL	2.6	+1.2%
86	Dolton, IL	2.6	+0.4%
86	Schiller Park, IL	2.6	-3%
90	Libertyville, IL	2.6	-1.1%
90	North Aurora, IL	2.6	+1.6%
90	Oak Lawn, IL	2.6	0%
90	Washington, IL	2.6	+0.8%
94	Chatham, IL	2.6	-0.8%
94	Wood Dale, IL	2.6	-2.6%
96	Deerfield, IL	2.6	+0.8%
96	Gurnee, IL	2.6	-0.4%
96	Norridge, IL	2.6	+0.8%
99	Des Plaines, IL	2.6	0%
99	Oak Forest, IL	2.6	-0.4%
101	Belvidere, IL	2.6	+1.2%
101	Blue Island, IL	2.6	-5.2%
101	East St. Louis, IL	2.6	+4.9%
101	Hickory Hills, IL	2.6	-1.9%
101	Lyons, IL	2.6	+2%
101	Mount Prospect, IL	2.6	+1.6%
101	Park Ridge, IL	2.6	+0.4%
101	Warrenville, IL	2.6	-0.8%
109	Elmwood Park, IL	2.6	-2.7%
109	Highland Park, IL	2.6	+0.4%
109	Northbrook, IL	2.6	0%
109	Woodridge, IL	2.6	-1.2%
113	Grayslake, IL	2.5	-1.9%
113	Roscoe, IL	2.5	-5.2%
113	Wheaton, IL	2.5	+0.8%
116	Barrington, IL	2.5	-1.9%
116	Batavia, IL	2.5	-1.6%
116	Geneva, IL	2.5	-2.3%
116	Glenview, IL	2.5	0%
116	Park Forest, IL	2.5	+2%
116	Rolling Meadows, IL	2.5	-3.1%
122	Bourbonnais, IL	2.5	-3.1%
122	O'Fallon, IL	2.5	-2.3%
124	Justice, IL	2.5	-2.3%
124	Niles, IL	2.5	-2.7%
124	Swansea, IL	2.5	-2.7%
124	Winfield, IL	2.5	+0.8%
128	Brookfield, IL	2.5	0%
128	Darien, IL	2.5	+1.2%
128	Lansing, IL	2.5	-1.2%
128	Matteson, IL	2.5	+0.8%
132	Sycamore, IL	2.5	+3.3%
132	Wheeling, IL	2.5	+0.4%
134	Columbia, IL	2.5	+0.8%
134	Kankakee, IL	2.5	+0.4%
134	Lombard, IL	2.5	0%
134	River Grove, IL	2.5	-2.7%
138	Bradley, IL	2.5	-0.8%
138	La Grange Park, IL	2.5	-3.9%
138	Orland Park, IL	2.5	+0.4%
138	River Forest, IL	2.5	0%
138	St. Charles, IL	2.5	+0.4%
143	Calumet City, IL	2.5	+2.1%
143	Tinley Park, IL	2.5	-1.6%
145	Elk Grove Village, IL	2.4	-2%
145	Midlothian, IL	2.4	+2.1%
145	Palos Heights, IL	2.4	-2.8%
145	Shiloh, IL	2.4	-0.4%
149	Vernon Hills, IL	2.4	-2%
149	Waterloo, IL	2.4	-1.6%
151	Burr Ridge, IL	2.4	+0.4%
151	Palatine, IL	2.4	-2%
153	Schaumburg, IL	2.4	+0.8%
153	Worth, IL	2.4	-2%
155	Alsip, IL	2.4	+0.4%
156	Arlington Heights, IL	2.4	-0.8%
156	Bloomingdale, IL	2.4	-0.8%
156	Downers Grove, IL	2.4	-1.2%
156	Ottawa, IL	2.4	-1.2%
156	Woodstock, IL	2.4	-2.4%
161	Edwardsville, IL	2.4	-3.3%
161	Morton, IL	2.4	0%
163	Glen Carbon, IL	2.4	-0.8%
163	Westchester, IL	2.4	+2.2%
165	Palos Hills, IL	2.3	-4.5%
165	Rockford, IL	2.3	0%
167	McHenry, IL	2.3	-2.1%
168	Godfrey, IL	2.3	+1.3%
168	Jacksonville, IL	2.3	+3.1%
168	Prospect Heights, IL	2.3	-6.8%
171	Fairview Heights, IL	2.3	+0.9%
172	Alton, IL	2.3	0%
172	Taylorville, IL	2.3	+2.2%
174	Chicago, IL	2.3	-1.3%
174	Huntley, IL	2.3	0%
174	Moline, IL	2.3	-0.9%
177	Rantoul, IL	2.3	-5.8%
178	East Moline, IL	2.3	-5%
178	Granite City, IL	2.3	-2.6%
178	Normal, IL	2.3	-3%
181	Loves Park, IL	2.3	-2.2%
181	Oak Park, IL	2.3	-0.4%
181	Richton Park, IL	2.3	-6.2%
184	Crest Hill, IL	2.3	0%
184	Lisle, IL	2.3	-0.4%
184	Morris, IL	2.3	+1.4%
187	Belleville, IL	2.2	-1.3%
188	Wood River, IL	2.2	-2.6%
189	Mount Vernon, IL	2.2	-1.8%
190	Centralia, IL	2.2	+0.5%
190	Champaign, IL	2.2	-0.5%
190	Pekin, IL	2.2	-0.5%
190	Streator, IL	2.2	+3.3%
194	Bloomington, IL	2.2	-1.8%
194	DeKalb, IL	2.2	-3.5%
194	East Peoria, IL	2.2	-1.3%
194	Effingham, IL	2.2	-3.5%
194	Peoria, IL	2.2	-0.5%
199	Danville, IL	2.2	-3.5%
199	Westmont, IL	2.2	-2.7%
201	Sterling, IL	2.2	+1.4%
202	Decatur, IL	2.2	-0.5%
202	Evanston, IL	2.2	-1.8%
204	Collinsville, IL	2.2	0%
204	Dixon, IL	2.2	0%
204	Herrin, IL	2.2	-2.3%
204	Rock Island, IL	2.2	+0.5%
208	Pontiac, IL	2.2	+2.9%
208	Springfield, IL	2.2	-0.9%
210	Quincy, IL	2.1	-1.4%
211	Kewanee, IL	2.1	-5.4%
212	Fox Lake, IL	2.1	-0.5%
212	Freeport, IL	2.1	+1%
214	Highland, IL	2.1	-2.8%
215	Galesburg, IL	2	-1.4%
216	Canton, IL	2	-2.9%
217	Crestwood, IL	2	+2%
218	Lincoln, IL	2	-3.4%
219	Marion, IL	2	-2.9%
219	Mattoon, IL	2	-2%
221	Urbana, IL	2	0%
222	Forest Park, IL	1.9	-1.5%
223	Macomb, IL	1.9	-2.6%
224	Carbondale, IL	1.9	+0.5%
225	Charleston, IL	1.9	-4.1%

Other periods

2024
2023
2022
2021

About this ranking

Average number of persons per private household. EU countries: EU-SILC. United States: American Community Survey five-year estimate of people in households divided by occupied housing units, where the period shown is the last year of the five-year span.

Covers private households only; people living in institutions or other group quarters are excluded. EU-SILC figures refer to the survey year. The EU and US surveys differ, so their figures are not strictly comparable.

Every value in the ranking comes from the same publisher and the same period, so the cities are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more) (Cities in Illinois by average household size, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat

MLA 9

American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more), Cities in Illinois by average household size, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Invokely, https://invokely.ai/rankings/average-household-size/illinois-cities. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more). Cities in Illinois by average household size, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Also distributed by Invokely, https://invokely.ai/rankings/average-household-size/illinois-cities.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more), Cities in Illinois by average household size, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat, via Invokely: https://invokely.ai/rankings/average-household-size/illinois-cities (Accessed: 12 October 2026).

BibTeX

@misc{census_cities_in_illinois_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more): Cities in Illinois by average household size, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/average-household-size/illinois-cities. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more): Cities in Illinois by average household size, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat
L2  - https://invokely.ai/rankings/average-household-size/illinois-cities
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-household-size/illinois-cities.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.
ER  -

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Questions

Which city has the highest average household size?

Cicero, IL, with 3.4 persons per household in 2024, according to the U.S. Census Bureau.

Which city has the lowest average household size?

Charleston, IL, with 1.9 persons per household in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US cities (incorporated places of 10,000 or more). Retrieved 2026-10-12.