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

60112 (Cortland), at 41.7%, 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.

ZIP codes with the most families with kids in DeKalb County, IL

These are the 14 ZIP codes in DeKalb County with the highest share of households with children, out of 14 with at least 1,000 residents. 60112 (Cortland, 41.7%), 60556 (Waterman, 39.4%) and 60146 (Kirkland, 38.4%) lead the list. There is no single "best" ZIP code in DeKalb 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 DeKalb County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	60112	Cortland	41.7%	4,621	1,599	1,748
2	60556	Waterman	39.4%	2,138	719	733
3	60146	Kirkland	38.4%	2,369	968	616
4	60520	Hinckley	38.3%	2,979	1,123	1,055
5	60531	Leland	35.9%	1,885	724	547
6	60145	Kingston	35.1%	2,464	900	878
7	60150	Malta	35.0%	1,738	591	479
8	60548	Sandwich	32.0%	11,721	4,548	5,002
9	60178	Sycamore	31.2%	22,224	8,735	9,583
10	60135	Genoa	29.4%	7,274	2,901	2,841
11	60151	Maple Park	26.2%	3,888	1,437	1,520
12	60115	Dekalb	25.6%	42,536	17,262	17,358
13	60518	Earlville	22.9%	3,289	1,465	1,255
14	60552	Somonauk	19.3%	4,285	1,807	1,557

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; 14 of 18 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 5,133 households, on 11 carrier routes with 4,699 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 60112 on the EDDM route map

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Frequently asked questions

Which ZIP code in DeKalb County has the highest share of households with children?: 60112 (Cortland), at 41.7%, among 14 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.