Which ZIP code in San Mateo County has the highest share of residents who moved in during the past year?

94403 (San Mateo), at 18.6%, among 28 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 new movers in San Mateo County, CA

These are the 25 ZIP codes in San Mateo County with the highest share of residents who moved in during the past year, out of 28 with at least 1,000 residents. 94403 (San Mateo, 18.6%), 94404 (San Mateo, 17.8%) and 94063 (Redwood City, 17.0%) lead the list. There is no single "best" ZIP code in San Mateo 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 new movers in San Mateo County

Rank	ZIP	Mailing city	Moved in the past year	Residents	Households	Residential mailboxes
1	94403	San Mateo	18.6%	43,276	16,414	18,180
2	94404	San Mateo	17.8%	35,881	14,717	15,551
3	94063	Redwood City	17.0%	34,433	11,427	12,701
4	94025	Menlo Park	16.3%	40,721	14,619	18,110
5	94027	Atherton	14.7%	7,002	2,236	2,478
6	94002	Belmont	14.2%	27,534	10,567	11,615
7	94402	San Mateo	13.4%	25,475	10,125	10,696
8	94401	San Mateo	12.8%	35,295	13,026	13,804
9	94065	Redwood City	12.1%	11,673	4,569	5,233
10	94010	Burlingame	11.7%	43,025	16,317	18,939
11	94030	Millbrae	11.7%	22,689	8,121	9,065
12	94303	Palo Alto	11.5%	46,879	14,466	14,447
13	94061	Redwood City	11.1%	37,048	12,805	14,239
14	94062	Redwood City	11.0%	25,759	9,729	10,388
15	94066	San Bruno	10.3%	42,728	15,224	16,434
16	94060	Pescadero	10.1%	1,465	362	—
17	94070	San Carlos	10.0%	30,447	11,279	12,601
18	94018	El Granada	9.9%	3,834	1,563	—
19	94015	Daly City	8.9%	64,091	20,350	20,600
20	94038	Moss Beach	8.7%	2,683	915	797
21	94014	Daly City	8.6%	45,315	14,101	14,348
22	94044	Pacifica	8.3%	37,274	13,928	—
23	94080	South San Francisco	7.9%	64,761	21,966	22,939
24	94005	Brisbane	6.8%	4,692	1,912	2,005
25	94028	Portola Valley	6.3%	6,531	2,637	2,612

How we ranked them

Ranked by the share of residents (age 1 and over) who lived in a different home a year earlier (ACS Data Profile, 2020–2024). No margin of error is published for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 28 of 31 qualify.

Which of these to mail, and why

New residents are still choosing a dentist, a gym, a pizza place and a lawn service. ZIP codes with high turnover give a welcome offer more people to work on each year.

The top five ZIP codes on this list hold 59,413 households, on 124 carrier routes with 67,020 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 94403 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 San Mateo County has the highest share of residents who moved in during the past year?: 94403 (San Mateo), at 18.6%, among 28 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of residents (age 1 and over) who lived in a different home a year earlier (ACS Data Profile, 2020–2024). No margin of error is published 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.