Which ZIP code in Sonoma County has the fastest population growth?

95497 (The Sea Ranch), at 12.4%, among 25 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 Sonoma County, CA

These are the 25 ZIP codes in Sonoma County with the fastest population growth, out of 25 with at least 1,000 residents. 95497 (The Sea Ranch, 12.4%), 95405 (Santa Rosa, 7.9%) and 95442 (Glen Ellen, 7.3%) lead the list. There is no single "best" ZIP code in Sonoma 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 Sonoma County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	95497	The Sea Ranch	12.4%	1,275	692	—
2	95405	Santa Rosa	7.9%	22,744	9,429	9,286
3	95442	Glen Ellen	7.3%	3,449	1,642	1,174
4	94931	Cotati	6.3%	9,487	4,072	3,755
5	94928	Rohnert Park	5.7%	46,829	17,200	18,764
6	95403	Santa Rosa	1.6%	45,806	16,823	18,952
7	95407	Santa Rosa	0.0%	42,036	13,168	14,298
8	95425	Cloverdale	-0.1%	10,978	4,309	4,509
9	94954	Petaluma	-3.1%	37,574	14,876	14,911
10	95476	Sonoma	-3.8%	35,196	15,072	15,681
11	94952	Petaluma	-4.8%	33,785	13,985	14,079
12	95401	Santa Rosa	-5.1%	36,861	13,840	15,027
13	95409	Santa Rosa	-5.8%	25,616	11,444	13,095
14	95462	Monte Rio	-5.9%	1,058	583	363
15	95492	Windsor	-6.3%	27,429	9,627	10,279
16	95472	Sebastopol	-6.5%	28,747	11,734	11,767
17	95436	Forestville	-6.7%	5,821	2,354	2,425
18	94515	Calistoga	-7.3%	6,946	2,615	3,122
19	95448	Healdsburg	-7.6%	16,077	6,741	7,688
20	95441	Geyserville	-8.3%	1,648	705	629
21	95404	Santa Rosa	-8.6%	37,011	15,478	17,784
22	95446	Guerneville	-10.9%	4,607	2,374	2,875
23	95421	Cazadero	-13.2%	1,570	663	491
24	94951	Penngrove	-28.0%	3,294	1,419	1,408
25	95465	Occidental	-46.4%	1,203	545	535

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; 25 of 39 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 33,035 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 95497 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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EDDM guides

Frequently asked questions

Which ZIP code in Sonoma County has the fastest population growth?: 95497 (The Sea Ranch), at 12.4%, among 25 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.