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ZIP Code Database - Facts & Stats

Data Last Updated: February 1, 2023

Zip Code 99403, Clarkston, WA

ZIP Code 99403 Details

Zip Code:99403
State:WA [Washington]
Counties:ASOTIN, WA
Multi County:Yes
City Alias(es):Clarkston
Area Code:509
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Pacific (GMT -08:00)
Observes Daylight Saving:Yes
Elevation:3232 ft
State FIPS:53
County FIPS:003
Intro Date:<2004-10

ZIP Code 99403 2010 Census Demographics

Current Population:20,187
2010 Population:19,548
Households per ZIP Code:8,392
Average House Value:$224,800
Avg. Income Per Household:$56,872
Persons Per Household:2.31
White Population:18,867
Black Population:192
Hispanic Population:604
Asian Population:189
American Indian Population:536
Hawaiian Population:67
Other Population:223
Male Population:9,451
Female Population:10,097
Median Age:43.20 years
Male Median Age:42.00 years
Female Median Age:44.30 years

ZIP Code 99403 Other Demographics

# Residential Mailboxes:8,739
# Business Mailboxes:468
Total Delivery Receptacles:9,712
Number of Businesses:410
1st Quarter Payroll:$48,472,000
Annual Payroll:$209,750,000
# of Employees:4,907
Water Area:1.369 sq mi
Land Area:143.492 sq mi
113th Congressional District:05
113th Congressional Land Area:15473.13 sq mi
Single Family Delivery Units:7,255
Multi Family Delivery Units:397
# Residential Mailboxes:8,739
# Business Mailboxes:468
Total Delivery Receptacles:9,712

ZIP Code 99403 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 5,960 6,055 +95
Retired Workers: 3,995 4,140 +145
Disabled Workers: 1,050 1,020 -30
Widow(er)s and Parents: 370 345 -25
Spouses: 190 185 -5
Children: 355 365 +10
65+: 4,285 4,400 +115
Monthly Benefits - All: $7,956,000 $8,309,000 +$353,000
Monthly Benefits - Retired Workers: $5,823,000 $6,216,000 +$393,000
Monthly Benefits - Widow(ers): $514,000 $488,000 ($26,000)

ZIP Code 99403 Statistical Areas

CBSA: 30300
CBSA Name: Lewiston, ID-WA
CBSA Type: Metro
CBSA Division: 
CBSA Division Name: 
CBSA Population:60,888
CBSA Division Population:0
MSA Name: 
PMSA Name: 
City State Key:Z16609
Preferred Last Line Key:Z16609
99402: Previous ZIP Code
Next ZIP Code: 99501


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 2/1/2023],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],