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

21075 (Elkridge), at 34.1 (±1.0), among 22 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 Howard County, MD

These are the 22 ZIP codes in Howard County with the lowest median age, out of 22 with at least 1,000 residents. 21075 (Elkridge, 34.1), 20763 (Savage, 35.9) and 20794 (Jessup, 36.8) lead the list. There is no single "best" ZIP code in Howard 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 Howard County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	21075	Elkridge	34.1 ±1.0	37,363	13,038	13,707
2	20763	Savage	35.9 ±5.1	2,601	1,142	1,049
3	20794	Jessup	36.8 ±1.9	16,814	3,928	4,565
4	20723	Laurel	37.2 ±1.2	36,866	12,497	13,160
5	21046	Columbia	37.3 ±2.1	15,608	6,165	6,431
6	21076	Hanover	38.1 ±2.6	24,268	9,785	11,395
7	21737	Glenelg	38.8 ±9.4	2,474	739	634
8	21784	Sykesville	38.9 ±1.0	39,258	13,416	14,941
9	21045	Columbia	39.6 ±1.1	40,034	15,414	15,244
10	21044	Columbia	40.0 ±1.5	44,114	18,293	20,280
11	21043	Ellicott City	40.3 ±1.1	48,525	17,568	18,948
12	20759	Fulton	40.6 ±3.6	6,624	1,993	2,393
13	21771	Mount Airy	40.9 ±1.7	33,031	11,226	11,089
14	21738	Glenwood	41.2 ±5.8	3,696	1,121	1,092
15	21029	Clarksville	43.1 ±2.1	13,607	4,056	4,113
16	21104	Marriottsville	43.1 ±4.2	6,052	2,097	2,277
17	21794	West Friendship	43.4 ±5.9	2,192	660	829
18	21042	Ellicott City	45.1 ±1.0	43,327	15,099	16,083
19	21797	Woodbine	45.3 ±3.6	8,643	2,849	3,313
20	21163	Woodstock	45.4 ±2.8	7,539	2,680	2,794
21	20777	Highland	45.5 ±2.2	3,221	1,097	1,193
22	21036	Dayton	48.8 ±7.3	2,569	882	790

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; 22 of 24 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 36,770 households, on 63 carrier routes with 38,912 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 21075 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Howard County has the lowest median age?: 21075 (Elkridge), at 34.1 (±1.0), among 22 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.