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

45065 (South Lebanon), at 56.0%, among 16 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 Warren County, OH

These are the 16 ZIP codes in Warren County with the fastest population growth, out of 16 with at least 1,000 residents. 45065 (South Lebanon, 56.0%), 45050 (Monroe, 42.0%) and 45152 (Morrow, 23.6%) lead the list. There is no single "best" ZIP code in Warren 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 Warren County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	45065	South Lebanon	56.0%	7,053	2,359	2,838
2	45050	Monroe	42.0%	12,248	4,288	4,570
3	45152	Morrow	23.6%	14,850	4,805	6,147
4	45458	Dayton	22.2%	38,712	15,700	16,588
5	45066	Springboro	10.0%	27,545	9,708	10,349
6	45162	Pleasant Plain	9.7%	2,754	1,060	1,025
7	45036	Lebanon	8.9%	42,204	14,553	16,180
8	45039	Maineville	8.8%	28,335	10,945	11,748
9	45040	Mason	8.4%	59,518	22,000	22,511
10	45005	Franklin	2.5%	32,251	12,611	13,998
11	45140	Loveland	1.5%	57,211	22,015	22,660
12	45068	Waynesville	-1.0%	11,597	4,369	4,429
13	45122	Goshen	-1.0%	10,977	4,166	4,702
14	45113	Clarksville	-2.0%	3,877	1,517	1,545
15	45107	Blanchester	-5.5%	9,190	3,293	3,964
16	45054	Oregonia	-7.9%	2,693	1,186	972

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; 16 of 18 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 36,860 households, on 67 carrier routes with 40,492 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 45065 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 Warren County has the fastest population growth?: 45065 (South Lebanon), at 56.0%, among 16 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.