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

95551 (Loleta), at 32.8%, among 17 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 Humboldt County, CA

These are the 17 ZIP codes in Humboldt County with the fastest population growth, out of 17 with at least 1,000 residents. 95551 (Loleta, 32.8%), 95542 (Garberville, 31.6%) and 95547 (Hydesville, 18.8%) lead the list. There is no single "best" ZIP code in Humboldt 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 Humboldt County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	95551	Loleta	32.8%	1,880	711	282
2	95542	Garberville	31.6%	2,463	1,202	877
3	95547	Hydesville	18.8%	1,263	491	182
4	95570	Trinidad	12.9%	2,640	1,171	758
5	95536	Ferndale	5.2%	3,050	1,307	684
6	95521	Arcata	4.3%	21,980	9,225	9,391
7	95525	Blue Lake	2.9%	1,441	761	73
8	95540	Fortuna	1.9%	14,469	5,689	5,962
9	95562	Rio Dell	0.6%	3,422	1,518	1,420
10	95501	Eureka	-1.9%	22,890	9,264	10,419
11	95524	Bayside	-2.0%	1,634	658	665
12	95503	Eureka	-3.5%	25,054	9,982	10,223
13	95519	Mckinleyville	-5.2%	18,728	7,429	8,106
14	95528	Carlotta	-10.5%	1,286	527	367
15	95560	Redway	-24.9%	1,213	611	19
16	95573	Willow Creek	-30.5%	1,089	618	2
17	95546	Hoopa	-30.8%	2,397	776	162

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; 17 of 35 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 4,882 households, on 12 carrier routes with 2,783 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 95551 on the EDDM route map

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Frequently asked questions

Which ZIP code in Humboldt County has the fastest population growth?: 95551 (Loleta), at 32.8%, among 17 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.