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

19946 (Frederica), at 47.7 (±5.5), among 14 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 Kent County, DE

These are the 14 ZIP codes in Kent County with the highest median age, out of 14 with at least 1,000 residents. 19946 (Frederica, 47.7), 19943 (Felton, 45.2) and 19950 (Greenwood, 44.9) lead the list. There is no single "best" ZIP code in Kent 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 Kent County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	19946	Frederica	47.7 ±5.5	5,603	2,178	1,915
2	19943	Felton	45.2 ±3.2	13,410	5,394	5,791
3	19950	Greenwood	44.9 ±3.7	7,918	3,250	2,934
4	19963	Milford	42.7 ±3.3	23,500	9,880	10,040
5	19954	Houston	41.2 ±7.6	1,427	630	679
6	19964	Marydel	40.5 ±10.5	1,418	631	492
7	19904	Dover	39.8 ±1.9	38,818	14,986	16,201
8	19962	Magnolia	39.7 ±3.4	13,770	5,041	5,417
9	19938	Clayton	39.4 ±2.7	9,561	3,159	3,561
10	19934	Camden Wyoming	39.2 ±3.0	14,061	5,186	5,956
11	19977	Smyrna	38.1 ±2.3	27,704	9,322	11,076
12	19952	Harrington	36.4 ±4.8	10,908	4,451	4,581
13	19901	Dover	33.6 ±1.7	37,763	13,951	15,350
14	19953	Hartly	33.6 ±6.6	5,255	1,841	1,749

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; 14 of 19 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 21,332 households, on 38 carrier routes with 21,359 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 19946 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 Kent County has the highest median age?: 19946 (Frederica), at 47.7 (±5.5), among 14 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.