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

45219 (Cincinnati), at 21.3 (±0.3), among 49 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 Hamilton County, OH

These are the 25 ZIP codes in Hamilton County with the lowest median age, out of 49 with at least 1,000 residents. 45219 (Cincinnati, 21.3), 45207 (Cincinnati, 23.4) and 45225 (Cincinnati, 26.9) lead the list. There is no single "best" ZIP code in Hamilton 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 Hamilton County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	45219	Cincinnati	21.3 ±0.3	20,012	7,090	9,320
2	45207	Cincinnati	23.4 ±2.4	6,983	2,318	2,529
3	45225	Cincinnati	26.9 ±2.4	9,583	4,416	3,883
4	45204	Cincinnati	27.6 ±4.7	8,412	3,014	2,743
5	45232	Cincinnati	28.3 ±2.8	6,363	2,975	2,846
6	45220	Cincinnati	29.1 ±1.8	14,109	6,632	7,393
7	45205	Cincinnati	30.7 ±3.1	18,651	7,009	7,703
8	45214	Cincinnati	31.5 ±3.2	8,630	3,987	3,947
9	45209	Cincinnati	32.2 ±1.1	10,570	6,179	7,123
10	45212	Cincinnati	33.3 ±1.7	21,526	10,127	11,022
11	45202	Cincinnati	33.3 ±1.1	17,869	10,250	13,644
12	45203	Cincinnati	33.6 ±1.7	2,436	1,108	1,365
13	45216	Cincinnati	34.0 ±3.2	9,569	3,625	4,273
14	45239	Cincinnati	34.1 ±1.9	29,607	12,137	12,421
15	45211	Cincinnati	34.7 ±2.5	38,049	15,924	17,373
16	45240	Cincinnati	35.5 ±2.3	29,600	10,986	11,053
17	45226	Cincinnati	35.6 ±2.2	5,796	2,910	3,283
18	45223	Cincinnati	35.7 ±3.0	14,182	6,512	6,710
19	45227	Cincinnati	36.2 ±2.3	18,893	9,054	9,824
20	45238	Cincinnati	36.7 ±1.5	48,351	20,452	20,021
21	45213	Cincinnati	36.8 ±4.0	11,139	5,519	5,779
22	45002	Cleves	37.1 ±2.8	15,413	5,669	5,773
23	45206	Cincinnati	37.2 ±2.5	10,299	5,974	7,311
24	45208	Cincinnati	37.4 ±1.3	17,943	8,441	9,290
25	45230	Cincinnati	37.7 ±2.6	27,501	11,867	13,024

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; 49 of 55 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 19,813 households, on 25 carrier routes with 21,321 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 45219 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 Hamilton County has the lowest median age?: 45219 (Cincinnati), at 21.3 (±0.3), among 49 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.