Which ZIP code in Milwaukee County has the highest median age?

53235 (Saint Francis), at 54.9 (±3.4), among 35 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.

Oldest ZIP codes in Milwaukee County, WI

These are the 25 ZIP codes in Milwaukee County with the highest median age, out of 35 with at least 1,000 residents. 53235 (Saint Francis, 54.9), 53132 (Franklin, 42.9) and 53228 (Milwaukee, 42.9) lead the list. There is no single "best" ZIP code in Milwaukee County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Oldest ZIP codes in Milwaukee County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	53235	Saint Francis	54.9 ±3.4	9,004	5,197	—
2	53132	Franklin	42.9 ±2.0	35,433	13,763	15,197
3	53228	Milwaukee	42.9 ±2.1	15,121	7,027	7,530
4	53110	Cudahy	42.3 ±1.9	17,853	8,475	8,330
5	53129	Greendale	41.3 ±2.2	14,570	6,091	—
6	53217	Milwaukee	40.8 ±1.3	29,957	11,605	—
7	53172	South Milwaukee	40.2 ±2.0	20,442	8,420	9,058
8	53226	Milwaukee	39.9 ±1.0	18,908	8,617	9,492
9	53227	Milwaukee	39.5 ±2.9	22,885	10,844	—
10	53130	Hales Corners	39.5 ±5.8	7,712	3,195	3,580
11	53154	Oak Creek	39.4 ±2.7	37,325	15,728	17,290
12	53220	Milwaukee	39.0 ±2.1	27,782	12,245	12,004
13	53221	Milwaukee	38.8 ±1.7	38,044	16,293	—
14	53214	Milwaukee	38.4 ±1.9	34,480	16,192	16,484
15	53219	Milwaukee	38.3 ±1.4	34,764	15,157	—
16	53207	Milwaukee	37.8 ±1.3	34,313	16,423	—
17	53223	Milwaukee	37.4 ±2.6	28,793	12,006	—
18	53213	Milwaukee	36.5 ±1.0	26,905	12,590	—
19	53209	Milwaukee	36.0 ±1.6	45,170	19,518	—
20	53222	Milwaukee	35.5 ±1.3	24,663	10,798	11,841
21	53216	Milwaukee	33.2 ±1.9	30,345	11,954	12,792
22	53208	Milwaukee	33.0 ±1.5	27,201	11,696	13,262
23	53210	Milwaukee	32.7 ±1.6	23,922	9,155	10,525
24	53225	Milwaukee	32.6 ±1.4	25,187	10,014	—
25	53202	Milwaukee	32.5 ±1.2	25,861	16,850	20,319

How we ranked them

Ranked by median age of all residents, highest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 35 of 36 qualify.

Which of these to mail, and why

Older ZIP codes respond to health care, hearing and vision, Medicare plans, home safety, estate planning and services that come to the door.

The top five ZIP codes on this list hold 40,553 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 53235 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

Map it and price it

EDDM guides

Frequently asked questions

Which ZIP code in Milwaukee County has the highest median age?: 53235 (Saint Francis), at 54.9 (±3.4), among 35 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, highest 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.