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

43240 (Columbus), at 32.9 (±2.2), among 13 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 Delaware County, OH

These are the 13 ZIP codes in Delaware County with the lowest median age, out of 13 with at least 1,000 residents. 43240 (Columbus, 32.9), 43035 (Lewis Center, 35.6) and 43015 (Delaware, 39.1) lead the list. There is no single "best" ZIP code in Delaware 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 Delaware County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	43240	Columbus	32.9 ±2.2	7,679	3,598	4,339
2	43035	Lewis Center	35.6 ±0.9	36,012	12,269	14,066
3	43015	Delaware	39.1 ±1.1	61,401	22,732	27,447
4	43061	Ostrander	39.1 ±5.2	4,921	1,544	1,897
5	43017	Dublin	39.6 ±1.9	41,613	16,148	17,423
6	43074	Sunbury	40.3 ±2.7	16,873	6,217	8,445
7	43021	Galena	41.3 ±1.8	14,403	4,710	5,644
8	43065	Powell	42.4 ±1.0	46,679	17,099	19,898
9	43082	Westerville	43.5 ±1.1	34,563	12,690	12,985
10	43011	Centerburg	43.6 ±4.5	6,594	2,551	2,679
11	43003	Ashley	46.0 ±3.3	3,723	1,481	—
12	43066	Radnor	46.0 ±13.6	1,368	568	479
13	43356	Waldo	56.7 ±14.5	1,120	510	392

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; 13 of 14 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 56,291 households, on 91 carrier routes with 65,172 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 43240 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 Delaware County has the lowest median age?: 43240 (Columbus), at 32.9 (±2.2), among 13 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.