What city is ZIP code 99105?

ZIP code 99105 is in LaCrosse, WA (Adams County).

What county is ZIP code 99105 in?

ZIP code 99105 is mostly in Adams County, Washington.

How many people live in ZIP code 99105?

About 41 people live in the 99105 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 99105

LaCrosse, WA, Adams County

Population

Land area

149.9sq mi

People per sq mi

City

LaCrosse

ZIP 99105 and nearby ZIP codes

Full map

ZIP 99105 at a glance

ZIP 99105 (LaCrosse) is 100% less dense than Washington as a whole.

Local data for ZIP 99105

Counts from official public data

Schools1

Economy and federal money

Businesses, pandemic loans and political donations

Campaign donations

$1,368

0% D, 7% R, 2026 cycle

Environment and hazard risk

ZIP 99105, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: wildfire

Storm events since 1996

363

Countywide, mostly heavy snow

Flood insurance policies

0.1% of homes, county

July high / Jan low

90° / 26°F

15.1 inches of rain a year

Hazards, floods and storm history Check a flood zone

Frequently asked questions

What city is ZIP code 99105?: ZIP code 99105 is in LaCrosse, WA (Adams County).
What county is ZIP code 99105 in?: ZIP code 99105 is mostly in Adams County, Washington.
How many people live in ZIP code 99105?: About 41 people live in the 99105 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.