Cities in Illinois by average household size

West Chicago, IL had the highest average household size of 225 cities in 2022, at 3.4 persons per household. Carbondale, IL had the lowest, at 1.9 persons per household. The median was 2.6 persons per household and the figure for Illinois was 2.5 persons per household. Source: the U.S. Census Bureau.

Highest3.4West Chicago, IL

Lowest1.9Carbondale, IL

Median2.6225 cities

Illinois2.5History

Top 40 cities, 2022

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	2022 persons per household	Change on 2021
1	West Chicago, IL	3.4	+0.9%
2	Cicero, IL	3.4	-3.7%
3	Hanover Park, IL	3.4	0%
4	Carpentersville, IL	3.3	-1.2%
4	Round Lake Beach, IL	3.3	+0.6%
6	Romeoville, IL	3.2	-0.6%
7	Plainfield, IL	3.2	-1.8%
8	Channahon, IL	3.2	+1%
9	Franklin Park, IL	3.2	+1.6%
10	Markham, IL	3.1	-4%
10	Montgomery, IL	3.1	-0.6%
12	Melrose Park, IL	3.1	-2.8%
13	Campton Hills, IL	3.1	+2.7%
14	Bolingbrook, IL	3.1	-1.9%
14	Frankfort, IL	3.1	-1.6%
14	Summit, IL	3.1	-5.6%
17	Burbank, IL	3.1	-0.7%
17	Homer Glen, IL	3.1	+0.3%
17	Minooka, IL	3.1	-2.2%
17	Round Lake, IL	3.1	-0.3%
21	Bellwood, IL	3	-1.9%
21	Mahomet, IL	3	+2.4%
21	Maywood, IL	3	+1.7%
24	New Lenox, IL	3	+1%
25	Manhattan, IL	3	-1.3%
26	Pingree Grove, IL	3	+0.3%
26	Western Springs, IL	3	-0.3%
28	Aurora, IL	3	-0.3%
28	Beach Park, IL	3	-1%
28	Streamwood, IL	3	-3.3%
28	Winnetka, IL	3	+2.1%
32	Joliet, IL	3	-0.7%
33	Country Club Hills, IL	3	+1.7%
34	Glendale Heights, IL	2.9	+0.3%
35	Hinsdale, IL	2.9	-1%
35	Lake in the Hills, IL	2.9	0%
37	Elgin, IL	2.9	-0.7%
37	Hazel Crest, IL	2.9	+0.7%
39	Chicago Heights, IL	2.9	-0.3%
39	Plano, IL	2.9	-0.3%
41	South Elgin, IL	2.9	-2%
42	Oswego, IL	2.9	-2.4%
43	Bartlett, IL	2.8	-3.4%
43	Shorewood, IL	2.8	+0.7%
45	Antioch, IL	2.8	+5.2%
45	Berwyn, IL	2.8	-2.7%
45	Yorkville, IL	2.8	-1.7%
48	Cahokia Heights, IL	2.8	n/a
48	Lincolnwood, IL	2.8	+1.1%
50	Lindenhurst, IL	2.8	-3.8%
51	Hoffman Estates, IL	2.8	-0.7%
51	Waukegan, IL	2.8	-2.8%
53	Cary, IL	2.8	-1.8%
54	Justice, IL	2.8	+1.8%
55	Hickory Hills, IL	2.8	-1.8%
55	Lemont, IL	2.8	-2.1%
55	Wauconda, IL	2.8	+0.4%
55	Zion, IL	2.8	-2.8%
59	Riverdale, IL	2.8	+0.4%
59	Roscoe, IL	2.8	-3.2%
59	Skokie, IL	2.8	-0.4%
62	River Grove, IL	2.8	-1.8%
62	Villa Park, IL	2.8	+0.7%
64	Harvey, IL	2.7	-1.4%
64	Homewood, IL	2.7	+2.6%
64	Lockport, IL	2.7	-3.2%
67	Algonquin, IL	2.7	+0.7%
67	Naperville, IL	2.7	-0.7%
69	Addison, IL	2.7	-3.5%
69	Carol Stream, IL	2.7	-2.2%
69	La Grange, IL	2.7	-1.4%
69	Lake Zurich, IL	2.7	-1.4%
69	Mokena, IL	2.7	-2.5%
69	Mundelein, IL	2.7	-2.9%
69	South Holland, IL	2.7	-4.6%
76	Buffalo Grove, IL	2.7	+0.7%
76	Crystal Lake, IL	2.7	-1.8%
76	Northlake, IL	2.7	-2.9%
76	Wood Dale, IL	2.7	-0.7%
80	Morton Grove, IL	2.7	+2.7%
81	Bensenville, IL	2.7	0%
81	Schiller Park, IL	2.7	-1.1%
83	Batavia, IL	2.7	+0.8%
83	Bourbonnais, IL	2.7	+1.5%
83	Bridgeview, IL	2.7	-2.5%
86	Oak Forest, IL	2.7	0%
87	Blue Island, IL	2.7	-2.2%
87	Chatham, IL	2.7	-1.8%
87	Wilmette, IL	2.7	-1.1%
90	Elmhurst, IL	2.7	-1.5%
90	O'Fallon, IL	2.7	-2.6%
92	Chicago Ridge, IL	2.6	+2.3%
92	Libertyville, IL	2.6	-2.2%
92	Lyons, IL	2.6	-2.6%
95	Lake Forest, IL	2.6	+0.8%
95	Machesney Park, IL	2.6	-0.4%
95	Roselle, IL	2.6	+0.8%
98	Evergreen Park, IL	2.6	-0.4%
98	Geneva, IL	2.6	-2.2%
98	North Chicago, IL	2.6	+0.4%
101	Swansea, IL	2.6	0%
101	Washington, IL	2.6	-1.5%
103	Deerfield, IL	2.6	+1.6%
103	Gurnee, IL	2.6	-1.9%
103	Oak Lawn, IL	2.6	-0.4%
103	Woodridge, IL	2.6	0%
107	Barrington, IL	2.6	-1.5%
107	Belvidere, IL	2.6	-4.4%
107	Dolton, IL	2.6	-5.1%
107	Niles, IL	2.6	+1.6%
107	Rolling Meadows, IL	2.6	-1.5%
112	Des Plaines, IL	2.6	-2.3%
112	Vernon Hills, IL	2.6	-1.5%
114	Glen Ellyn, IL	2.6	-0.8%
114	Grayslake, IL	2.6	-3%
114	Park Forest, IL	2.6	-0.4%
114	Troy, IL	2.6	+2.4%
118	Elmwood Park, IL	2.6	-3%
118	Lansing, IL	2.6	-1.2%
118	Mount Prospect, IL	2.6	-1.5%
118	North Aurora, IL	2.6	+0.4%
122	Bradley, IL	2.6	-2.3%
122	Glenview, IL	2.6	-1.2%
122	Park Ridge, IL	2.6	-0.8%
125	Elk Grove Village, IL	2.5	-1.6%
125	Northbrook, IL	2.5	-1.2%
125	Tinley Park, IL	2.5	+0.4%
125	Wheaton, IL	2.5	-1.2%
129	Edwardsville, IL	2.5	-1.6%
129	La Grange Park, IL	2.5	-1.2%
129	Norridge, IL	2.5	0%
129	Warrenville, IL	2.5	-3.1%
129	Winfield, IL	2.5	-0.4%
134	Columbia, IL	2.5	-3.1%
134	Lombard, IL	2.5	-0.8%
134	Orland Park, IL	2.5	-0.4%
134	Palatine, IL	2.5	-0.8%
138	Prospect Heights, IL	2.5	-0.4%
139	Kankakee, IL	2.5	+0.4%
139	Palos Heights, IL	2.5	-2.3%
139	Waterloo, IL	2.5	+1.2%
142	Matteson, IL	2.5	-2.7%
142	Worth, IL	2.5	-0.4%
144	Brookfield, IL	2.5	-2.7%
144	Calumet City, IL	2.5	-4.2%
144	Richton Park, IL	2.5	-2.7%
147	Burr Ridge, IL	2.5	+0.4%
147	Highland Park, IL	2.5	-0.4%
147	Shiloh, IL	2.5	+0.8%
147	Wheeling, IL	2.5	-2%
147	Woodstock, IL	2.5	-2%
152	Darien, IL	2.5	-2.4%
152	Palos Hills, IL	2.5	+4.7%
154	Alsip, IL	2.5	-1.6%
154	Downers Grove, IL	2.5	+0.4%
154	Midlothian, IL	2.5	-3.2%
157	River Forest, IL	2.4	+1.7%
157	St. Charles, IL	2.4	-2%
159	East St. Louis, IL	2.4	-4%
159	Glen Carbon, IL	2.4	+0.4%
159	McHenry, IL	2.4	-0.8%
159	Sycamore, IL	2.4	-0.8%
163	Bloomingdale, IL	2.4	-0.4%
163	Schaumburg, IL	2.4	+0.4%
165	Arlington Heights, IL	2.4	-1.6%
165	Ottawa, IL	2.4	+0.4%
167	Normal, IL	2.4	-0.4%
168	Chicago, IL	2.4	-2.1%
168	Granite City, IL	2.4	-1.7%
168	Rockford, IL	2.4	-0.4%
171	East Moline, IL	2.4	-1.7%
171	Loves Park, IL	2.4	0%
171	Rantoul, IL	2.4	-3.7%
174	Danville, IL	2.3	-2.5%
174	Fairview Heights, IL	2.3	-0.9%
174	Wood River, IL	2.3	-1.3%
177	Godfrey, IL	2.3	+1.3%
177	Kewanee, IL	2.3	-4.1%
177	Morton, IL	2.3	0%
177	Taylorville, IL	2.3	+4%
181	Belleville, IL	2.3	-1.3%
181	Effingham, IL	2.3	+1.8%
181	Moline, IL	2.3	-1.3%
181	Mount Vernon, IL	2.3	+0.4%
181	Westchester, IL	2.3	-5.3%
181	Westmont, IL	2.3	-0.9%
187	Alton, IL	2.3	+0.4%
187	Champaign, IL	2.3	+0.9%
187	DeKalb, IL	2.3	-2.1%
187	East Peoria, IL	2.3	-0.4%
191	Oak Park, IL	2.3	-2.6%
192	Centralia, IL	2.3	-0.4%
192	Huntley, IL	2.3	-2.6%
194	Bloomington, IL	2.3	-1.3%
194	Evanston, IL	2.3	-3.4%
196	Lisle, IL	2.3	-1.3%
196	Morris, IL	2.3	-3%
196	Rock Island, IL	2.3	0%
199	Peoria, IL	2.3	-2.2%
200	Pekin, IL	2.2	0%
201	Crest Hill, IL	2.2	-0.9%
202	Herrin, IL	2.2	-3.1%
203	Decatur, IL	2.2	0%
203	Sterling, IL	2.2	-1.3%
205	Jacksonville, IL	2.2	-0.5%
205	Quincy, IL	2.2	-3.5%
205	Springfield, IL	2.2	+0.5%
208	Collinsville, IL	2.2	-5.2%
209	Canton, IL	2.1	0%
209	Dixon, IL	2.1	-3.2%
209	Freeport, IL	2.1	-1.4%
209	Pontiac, IL	2.1	-3.2%
213	Highland, IL	2.1	-4.5%
214	Mattoon, IL	2.1	+1%
215	Fox Lake, IL	2.1	-6.3%
215	Galesburg, IL	2.1	-0.5%
215	Lincoln, IL	2.1	-0.5%
215	Streator, IL	2.1	-0.5%
219	Crestwood, IL	2.1	-5.5%
220	Marion, IL	2.1	-1%
221	Macomb, IL	2	-3.8%
222	Urbana, IL	2	-1.5%
223	Charleston, IL	2	-3.9%
224	Forest Park, IL	1.9	-5.9%
225	Carbondale, IL	1.9	+1.6%

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/2022/table-based-SF/data/5YRData/acsdt5y2022-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, 2022) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-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, 2022. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25010.dat. Invokely, https://invokely.ai/rankings/average-household-size/illinois-cities?period=2022. 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, 2022. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25010.dat. Also distributed by Invokely, https://invokely.ai/rankings/average-household-size/illinois-cities?period=2022.

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, 2022 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25010.dat, via Invokely: https://invokely.ai/rankings/average-household-size/illinois-cities?period=2022 (Accessed: 12 October 2026).

BibTeX

@misc{census_cities_in_illinois_by_2022,
  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, 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/average-household-size/illinois-cities?period=2022. 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/2022/table-based-SF/data/5YRData/acsdt5y2022-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, 2022
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b25010.dat
L2  - https://invokely.ai/rankings/average-household-size/illinois-cities?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-household-size/illinois-cities?period=2022.
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/2022/table-based-SF/data/5YRData/acsdt5y2022-b25010.dat. Retrieved 2026-10-12.
ER  -

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Questions

Which city has the highest average household size?

West Chicago, IL, with 3.4 persons per household in 2022, according to the U.S. Census Bureau.

Which city has the lowest average household size?

Carbondale, IL, with 1.9 persons per household in 2022.

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.