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

43240 (Columbus), at 74.1%, 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.

Fastest-growing ZIP codes in Delaware County, OH

These are the 13 ZIP codes in Delaware County with the fastest population growth, out of 13 with at least 1,000 residents. 43240 (Columbus, 74.1%), 43035 (Lewis Center, 31.0%) and 43003 (Ashley, 27.4%) 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.

Fastest-growing ZIP codes in Delaware County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	43240	Columbus	74.1%	7,679	3,598	4,339
2	43035	Lewis Center	31.0%	36,012	12,269	14,066
3	43003	Ashley	27.4%	3,723	1,481	—
4	43074	Sunbury	20.7%	16,873	6,217	8,445
5	43066	Radnor	13.8%	1,368	568	479
6	43021	Galena	13.3%	14,403	4,710	5,644
7	43015	Delaware	8.5%	61,401	22,732	27,447
8	43065	Powell	8.5%	46,679	17,099	19,898
9	43061	Ostrander	6.9%	4,921	1,544	1,897
10	43082	Westerville	1.8%	34,563	12,690	12,985
11	43017	Dublin	0.0%	41,613	16,148	17,423
12	43356	Waldo	-1.5%	1,120	510	392
13	43011	Centerburg	-17.8%	6,594	2,551	2,679

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; 13 of 14 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 24,133 households. 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 fastest population growth?: 43240 (Columbus), at 74.1%, among 13 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.