Which ZIP code in San Mateo County has the fastest population growth?

94037 (Montara), at 16.5%, among 26 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.

Fastest-growing ZIP codes in San Mateo County, CA

These are the 25 ZIP codes in San Mateo County with the fastest population growth, out of 26 with at least 1,000 residents. 94037 (Montara, 16.5%), 94002 (Belmont, 1.4%) and 94010 (Burlingame, 0.6%) 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.

Fastest-growing ZIP codes in San Mateo County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	94037	Montara	16.5%	2,917	1,003	—
2	94002	Belmont	1.4%	27,534	10,567	11,615
3	94010	Burlingame	0.6%	43,025	16,317	18,939
4	94030	Millbrae	0.3%	22,689	8,121	9,065
5	94005	Brisbane	-0.1%	4,692	1,912	2,005
6	94020	La Honda	-0.2%	1,694	829	198
7	94066	San Bruno	-0.9%	42,728	15,224	16,434
8	94402	San Mateo	-0.9%	25,475	10,125	10,696
9	94063	Redwood City	-1.2%	34,433	11,427	12,701
10	94015	Daly City	-1.5%	64,091	20,350	20,600
11	94401	San Mateo	-2.0%	35,295	13,026	13,804
12	94070	San Carlos	-2.0%	30,447	11,279	12,601
13	94403	San Mateo	-2.5%	43,276	16,414	18,180
14	94303	Palo Alto	-2.8%	46,879	14,466	14,447
15	94404	San Mateo	-3.0%	35,881	14,717	15,551
16	94080	South San Francisco	-4.2%	64,761	21,966	22,939
17	94044	Pacifica	-4.4%	37,274	13,928	—
18	94061	Redwood City	-5.1%	37,048	12,805	14,239
19	94027	Atherton	-5.6%	7,002	2,236	2,478
20	94025	Menlo Park	-6.2%	40,721	14,619	18,110
21	94065	Redwood City	-6.3%	11,673	4,569	5,233
22	94014	Daly City	-7.8%	45,315	14,101	14,348
23	94028	Portola Valley	-8.3%	6,531	2,637	2,612
24	94062	Redwood City	-9.4%	25,759	9,729	10,388
25	94038	Moss Beach	-22.2%	2,683	915	797

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 26 of 31 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 37,920 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 94037 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

Map it and price it

EDDM guides

Frequently asked questions

Which ZIP code in San Mateo County has the fastest population growth?: 94037 (Montara), at 16.5%, among 26 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.