Which ZIP code in Harford County has the highest share of households with children?

21132 (Pylesville), at 41.3%, among 20 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.

ZIP codes with the most families with kids in Harford County, MD

These are the 20 ZIP codes in Harford County with the highest share of households with children, out of 20 with at least 1,000 residents. 21132 (Pylesville, 41.3%), 21005 (Aberdeen Proving Ground, 40.2%) and 21015 (Bel Air, 38.3%) lead the list. There is no single "best" ZIP code in Harford County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

ZIP codes with the most families with kids in Harford County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	21132	Pylesville	41.3%	3,160	1,072	1,025
2	21005	Aberdeen Proving Ground	40.2%	2,202	835	1,010
3	21015	Bel Air	38.3%	30,013	11,012	12,380
4	21013	Baldwin	37.7%	5,610	1,843	1,714
5	21111	Monkton	36.1%	4,714	1,908	1,915
6	21040	Edgewood	35.0%	24,960	9,795	9,430
7	21050	Forest Hill	34.2%	17,466	6,422	7,054
8	21047	Fallston	32.8%	13,852	4,810	4,844
9	21009	Abingdon	31.9%	33,679	12,940	12,564
10	21017	Belcamp	31.1%	6,648	2,669	2,777
11	21014	Bel Air	30.8%	38,707	15,143	15,327
12	21001	Aberdeen	30.7%	27,168	11,204	12,341
13	21034	Darlington	29.9%	2,846	1,132	1,404
14	21085	Joppa	27.0%	17,307	6,801	7,391
15	21028	Churchville	26.9%	3,103	1,066	1,200
16	21161	White Hall	26.6%	5,221	1,887	2,087
17	21084	Jarrettsville	26.4%	7,070	2,724	2,745
18	21160	Whiteford	26.3%	2,441	968	960
19	21078	Havre De Grace	25.2%	20,030	8,476	9,237
20	21154	Street	22.6%	6,544	2,403	2,336

How we ranked them

Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 20 of 22 qualify.

Which of these to mail, and why

Households with children buy tutoring, youth sports, pediatric and family dental care, child care, birthday venues and family dining. EDDM reaches every door on a route, so a higher share means more of your pieces land with families.

The top five ZIP codes on this list hold 16,670 households, on 31 carrier routes with 18,044 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 21132 on the EDDM route map

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Frequently asked questions

Which ZIP code in Harford County has the highest share of households with children?: 21132 (Pylesville), at 41.3%, among 20 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files.
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.