Which ZIP code in Milwaukee County has the fastest population growth?

53203 (Milwaukee), at 36.6%, 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.

Fastest-growing ZIP codes in Milwaukee County, WI

These are the 25 ZIP codes in Milwaukee County with the fastest population growth, out of 35 with at least 1,000 residents. 53203 (Milwaukee, 36.6%), 53220 (Milwaukee, 5.4%) and 53217 (Milwaukee, 4.5%) 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.

Fastest-growing ZIP codes in Milwaukee County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	53203	Milwaukee	36.6%	2,357	1,585	—
2	53220	Milwaukee	5.4%	27,782	12,245	12,004
3	53217	Milwaukee	4.5%	29,957	11,605	—
4	53205	Milwaukee	4.0%	9,265	3,539	—
5	53202	Milwaukee	3.8%	25,861	16,850	20,319
6	53154	Oak Creek	3.5%	37,325	15,728	17,290
7	53204	Milwaukee	3.4%	39,996	13,964	13,933
8	53129	Greendale	3.0%	14,570	6,091	—
9	53228	Milwaukee	2.8%	15,121	7,027	7,530
10	53130	Hales Corners	2.0%	7,712	3,195	3,580
11	53226	Milwaukee	-0.2%	18,908	8,617	9,492
12	53219	Milwaukee	-0.3%	34,764	15,157	—
13	53132	Franklin	-1.0%	35,433	13,763	15,197
14	53223	Milwaukee	-1.5%	28,793	12,006	—
15	53218	Milwaukee	-1.9%	41,196	15,127	15,177
16	53110	Cudahy	-2.3%	17,853	8,475	8,330
17	53172	South Milwaukee	-2.5%	20,442	8,420	9,058
18	53213	Milwaukee	-2.8%	26,905	12,590	—
19	53214	Milwaukee	-3.0%	34,480	16,192	16,484
20	53215	Milwaukee	-3.1%	58,146	19,328	—
21	53209	Milwaukee	-3.1%	45,170	19,518	—
22	53227	Milwaukee	-3.1%	22,885	10,844	—
23	53211	Milwaukee	-3.4%	34,234	15,146	—
24	53233	Milwaukee	-4.3%	14,497	4,731	—
25	53224	Milwaukee	-4.9%	21,223	8,005	7,931

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 35 of 36 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 45,824 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 53203 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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EDDM guides

Frequently asked questions

Which ZIP code in Milwaukee County has the fastest population growth?: 53203 (Milwaukee), at 36.6%, among 35 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

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