Which ZIP code in Queen Anne's County has the highest median age?

21657 (Queen Anne), at 58.5 (±13.6), among 12 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 Queen Anne's County, MD

These are the 12 ZIP codes in Queen Anne's County with the highest median age, out of 12 with at least 1,000 residents. 21657 (Queen Anne, 58.5), 21658 (Queenstown, 53.6) and 21668 (Sudlersville, 49.4) lead the list. There is no single "best" ZIP code in Queen Anne's 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 Queen Anne's County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	21657	Queen Anne	58.5 ±13.6	1,354	522	348
2	21658	Queenstown	53.6 ±3.3	3,632	1,404	1,847
3	21668	Sudlersville	49.4 ±7.4	2,011	773	662
4	21619	Chester	47.2 ±4.7	6,152	2,619	4,165
5	21666	Stevensville	46.0 ±1.9	14,394	5,555	5,846
6	21620	Chestertown	42.5 ±2.5	13,810	5,700	5,990
7	21638	Grasonville	42.3 ±4.3	5,420	1,916	2,378
8	21617	Centreville	41.4 ±1.9	10,428	3,985	4,359
9	21640	Henderson	39.9 ±13.5	1,163	511	600
10	21623	Church Hill	36.4 ±3.1	2,669	893	851
11	21649	Marydel	36.1 ±7.0	1,890	546	572
12	21651	Millington	34.4 ±8.9	2,290	884	998

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; 12 of 15 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 10,873 households, on 25 carrier routes with 12,868 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 21657 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 Queen Anne's County has the highest median age?: 21657 (Queen Anne), at 58.5 (±13.6), among 12 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.