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

95391 (Tracy), at 60.3%, among 50 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 Alameda County, CA

These are the 25 ZIP codes in Alameda County with the highest share of households with children, out of 50 with at least 1,000 residents. 95391 (Tracy, 60.3%), 95377 (Tracy, 52.3%) and 94555 (Fremont, 52.2%) lead the list. There is no single "best" ZIP code in Alameda 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 Alameda County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	95391	Tracy	60.3%	25,574	7,097	9,181
2	95377	Tracy	52.3%	37,739	10,170	12,874
3	94555	Fremont	52.2%	37,501	11,847	11,866
4	94568	Dublin	45.4%	70,803	24,165	25,529
5	94603	Oakland	42.4%	35,742	10,527	10,329
6	94539	Fremont	42.1%	52,396	17,375	18,533
7	94502	Alameda	41.7%	13,430	4,780	5,255
8	94621	Oakland	39.5%	33,840	10,359	9,688
9	94601	Oakland	38.9%	53,259	16,734	16,444
10	94566	Pleasanton	38.8%	44,222	15,921	16,687
11	94588	Pleasanton	38.3%	34,328	12,465	12,794
12	94538	Fremont	38.0%	67,781	23,628	25,566
13	94536	Fremont	37.5%	70,619	25,205	26,307
14	94544	Hayward	36.1%	76,947	22,991	25,402
15	94550	Livermore	36.0%	49,873	17,564	18,701
16	94580	San Lorenzo	35.4%	29,420	8,992	9,063
17	94546	Castro Valley	35.2%	44,855	15,565	17,513
18	94560	Newark	35.1%	46,903	15,252	16,281
19	94552	Castro Valley	34.9%	14,506	5,021	5,108
20	94541	Hayward	34.8%	67,139	21,584	23,568
21	94619	Oakland	34.7%	26,831	9,809	9,700
22	94545	Hayward	33.9%	32,843	10,085	10,136
23	94578	San Leandro	33.2%	41,769	13,904	14,614
24	94551	Livermore	32.7%	37,885	14,052	14,716
25	94706	Albany	32.2%	19,969	7,945	8,550

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; 50 of 52 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 63,806 households, on 91 carrier routes with 69,779 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 95391 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 Alameda County has the highest share of households with children?: 95391 (Tracy), at 60.3%, among 50 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.