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

01731 (Hanscom Afb), at 54.9%, among 82 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 Middlesex County, MA

These are the 25 ZIP codes in Middlesex County with the highest share of households with children, out of 82 with at least 1,000 residents. 01731 (Hanscom Afb, 54.9%), 01748 (Hopkinton, 51.2%) and 01776 (Sudbury, 45.4%) lead the list. There is no single "best" ZIP code in Middlesex 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 Middlesex County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	01731	Hanscom Afb	54.9%	2,110	680	729
2	01748	Hopkinton	51.2%	19,358	6,660	7,069
3	01776	Sudbury	45.4%	19,270	6,279	6,875
4	02468	Waban	45.4%	5,773	1,948	1,977
5	01770	Sherborn	44.3%	4,427	1,532	1,559
6	01850	Lowell	44.0%	17,740	6,089	5,825
7	01450	Groton	43.5%	11,356	3,697	4,091
8	02420	Lexington	43.2%	16,215	5,653	5,535
9	01890	Winchester	41.8%	23,406	8,340	8,453
10	01886	Westford	40.4%	24,690	8,795	9,423
11	02478	Belmont	39.5%	27,175	10,412	10,482
12	01741	Carlisle	39.5%	5,239	1,776	1,850
13	02421	Lexington	39.4%	18,080	6,824	7,066
14	02493	Weston	39.1%	11,579	3,776	3,982
15	01460	Littleton	39.0%	10,280	3,804	3,923
16	01863	North Chelmsford	38.9%	9,796	3,573	4,229
17	01778	Wayland	38.8%	14,033	5,110	5,567
18	01887	Wilmington	36.8%	23,336	7,926	8,312
19	01864	North Reading	36.4%	15,765	5,825	6,234
20	02149	Everett	36.3%	50,045	17,466	19,531
21	01720	Acton	36.2%	23,526	9,098	9,054
22	02461	Newton Highlands	36.0%	6,975	2,630	2,850
23	01702	Framingham	35.9%	39,789	14,289	15,746
24	02465	West Newton	35.9%	11,697	4,412	4,543
25	01827	Dunstable	35.8%	3,408	1,117	1,126

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; 82 of 83 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 17,099 households, on 39 carrier routes with 18,209 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 01731 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 Middlesex County has the highest share of households with children?: 01731 (Hanscom Afb), at 54.9%, among 82 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.