Which ZIP code in San Luis Obispo County has the highest share of households with children?

93454 (Santa Maria), at 42.8%, among 21 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 San Luis Obispo County, CA

These are the 21 ZIP codes in San Luis Obispo County with the highest share of households with children, out of 21 with at least 1,000 residents. 93454 (Santa Maria, 42.8%), 93461 (Shandon, 41.0%) and 93432 (Creston, 40.8%) lead the list. There is no single "best" ZIP code in San Luis Obispo 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 San Luis Obispo County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	93454	Santa Maria	42.8%	41,896	12,050	13,128
2	93461	Shandon	41.0%	1,548	463	116
3	93432	Creston	40.8%	1,142	377	366
4	93451	San Miguel	38.1%	5,207	1,663	1,272
5	93465	Templeton	36.8%	11,039	4,130	3,841
6	93433	Grover Beach	32.7%	12,600	4,945	5,756
7	93444	Nipomo	31.8%	21,611	7,776	7,679
8	93446	Paso Robles	30.2%	45,554	17,461	18,970
9	93422	Atascadero	28.9%	33,002	12,895	13,232
10	93445	Oceano	26.1%	6,857	2,874	2,488
11	93420	Arroyo Grande	25.2%	31,345	12,672	12,288
12	93402	Los Osos	24.4%	14,197	6,007	6,214
13	93426	Bradley	23.2%	1,564	598	928
14	93401	San Luis Obispo	17.0%	29,202	13,522	15,724
15	93428	Cambria	16.5%	6,399	2,974	3,558
16	93442	Morro Bay	16.4%	11,571	5,433	6,026
17	93449	Pismo Beach	15.9%	8,014	4,129	5,323
18	93430	Cayucos	15.0%	3,125	1,571	1,795
19	93453	Santa Margarita	14.1%	2,344	1,189	747
20	93405	San Luis Obispo	11.2%	25,002	8,883	9,679
21	93410	California Polytechnic State University	0.0%	7,396	14	—

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; 21 of 26 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 18,683 households, on 33 carrier routes with 18,723 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 93454 on the EDDM route map

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Frequently asked questions

Which ZIP code in San Luis Obispo County has the highest share of households with children?: 93454 (Santa Maria), at 42.8%, among 21 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.