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

98564 (Mossyrock), at 53.9%, among 10 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 Lewis County, WA

These are the 10 ZIP codes in Lewis County with the fastest population growth, out of 10 with at least 1,000 residents. 98564 (Mossyrock, 53.9%), 98377 (Randle, 41.6%) and 98570 (Onalaska, 27.4%) lead the list. There is no single "best" ZIP code in Lewis 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 Lewis County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	98564	Mossyrock	53.9%	3,382	1,412	917
2	98377	Randle	41.6%	2,527	1,090	591
3	98570	Onalaska	27.4%	5,319	1,927	1,503
4	98593	Vader	22.3%	1,541	612	450
5	98591	Toledo	17.4%	3,965	1,470	1,372
6	98532	Chehalis	12.7%	27,135	9,931	10,215
7	98356	Morton	8.1%	2,172	962	377
8	98531	Centralia	5.0%	27,337	11,123	10,851
9	98579	Rochester	3.4%	14,048	5,023	4,857
10	98596	Winlock	-11.0%	6,950	2,405	2,929

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; 10 of 22 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 6,511 households, on 14 carrier routes with 4,833 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 98564 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 Lewis County has the fastest population growth?: 98564 (Mossyrock), at 53.9%, among 10 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.