Which ZIP code in Cook County has the lowest median age?

60602 (Chicago), at 28.0 (±2.3), among 169 ZIP codes with at least 1,000 residents.

Why are some ZIP codes missing?

ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

Youngest ZIP codes in Cook County, IL

These are the 25 ZIP codes in Cook County with the lowest median age, out of 169 with at least 1,000 residents. 60602 (Chicago, 28.0), 60165 (Stone Park, 28.9) and 60607 (Chicago, 30.8) lead the list. There is no single "best" ZIP code in Cook County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Youngest ZIP codes in Cook County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	60602	Chicago	28.0 ±2.3	1,480	712	827
2	60165	Stone Park	28.9 ±4.2	4,482	1,185	1,186
3	60607	Chicago	30.8 ±0.8	32,392	16,556	22,738
4	60614	Chicago	31.1 ±0.5	70,693	35,386	39,439
5	60657	Chicago	31.3 ±0.6	71,904	40,520	42,368
6	60637	Chicago	31.4 ±0.9	52,721	22,817	22,674
7	60605	Chicago	31.5 ±0.9	36,210	19,632	22,080
8	60827	Riverdale	31.7 ±2.1	24,713	9,447	10,013
9	60610	Chicago	32.0 ±1.1	44,883	28,478	32,106
10	60654	Chicago	32.2 ±1.0	25,755	16,968	18,667
11	60661	Chicago	32.2 ±1.3	11,398	7,788	9,264
12	60622	Chicago	32.7 ±0.5	54,609	26,486	24,805
13	60647	Chicago	32.9 ±0.4	84,749	38,849	35,757
14	60642	Chicago	33.1 ±0.8	21,789	11,765	12,964
15	60469	Posen	33.1 ±3.6	5,205	1,470	1,679
16	60603	Chicago	33.1 ±5.6	1,298	783	1,192
17	60601	Chicago	33.4 ±0.9	15,235	9,631	13,510
18	60606	Chicago	33.4 ±6.8	3,840	2,900	2,937
19	60163	Berkeley	33.6 ±5.0	5,199	1,789	1,882
20	60472	Robbins	33.6 ±6.4	4,563	1,585	1,579
21	60415	Chicago Ridge	34.0 ±2.8	14,099	5,234	5,908
22	60629	Chicago	34.2 ±1.4	108,324	33,755	29,181
23	60612	Chicago	34.3 ±1.3	35,744	15,393	15,292
24	60804	Cicero	34.4 ±1.2	82,797	24,432	18,480
25	60608	Chicago	34.5 ±0.8	80,737	30,650	23,949

How we ranked them

Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 169 of 173 qualify.

Which of these to mail, and why

Younger ZIP codes skew toward renters, students and young families: fitness, quick-service food, apartments, entertainment and first-time-buyer offers.

The top five ZIP codes on this list hold 94,359 households, on 142 carrier routes with 106,558 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 60602 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Cook County has the lowest median age?: 60602 (Chicago), at 28.0 (±2.3), among 169 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024).
Why are some ZIP codes missing?: ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.