Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

Zip Code 99338, Kennewick, WA

ZIP Code 99338 Details

Zip Code:99338
State:WA [Washington]
Counties:BENTON, WA
Multi County:No
City Alias(es):Kennewick
City Alias(es) To Avoid Using:Pasco
Area Code:509
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Pacific (GMT -08:00)
Observes Daylight Saving:Yes
Elevation:1608 ft
State FIPS:53
County FIPS:005
Intro Date:<2004-10

ZIP Code 99338 2010 Census Demographics

Current Population:21,245
2010 Population:11,555
Households per ZIP Code:3,985
Average House Value:$357,000
Avg. Income Per Household:$117,286
Persons Per Household:2.90
White Population:10,711
Black Population:163
Hispanic Population:790
Asian Population:471
American Indian Population:158
Hawaiian Population:31
Other Population:379
Male Population:5,788
Female Population:5,767
Median Age:39.50 years
Male Median Age:39.00 years
Female Median Age:39.90 years

ZIP Code 99338 Other Demographics

# Residential Mailboxes:7,326
# Business Mailboxes:186
Total Delivery Receptacles:12,015
Number of Businesses:303
1st Quarter Payroll:$35,652,000
Annual Payroll:$165,992,000
# of Employees:2,749
Water Area:0 sq mi
Land Area:66.458 sq mi
113th Congressional District:04
113th Congressional Land Area:19250.22 sq mi
Single Family Delivery Units:1,694
Multi Family Delivery Units:561
# Residential Mailboxes:7,326
# Business Mailboxes:186
Total Delivery Receptacles:12,015

ZIP Code 99338 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 2,900 3,100 +200
Retired Workers: 2,220 2,395 +175
Disabled Workers: 260 270 +10
Widow(er)s and Parents: 145 155 +10
Spouses: 125 130 +5
Children: 150 150 0
65+: 2,335 2,510 +175
Monthly Benefits - All: $4,656,000 $5,131,000 +$475,000
Monthly Benefits - Retired Workers: $3,814,000 $4,232,000 +$418,000
Monthly Benefits - Widow(ers): $232,000 $256,000 +$24,000

ZIP Code 99338 Statistical Areas

CBSA: 28420
CBSA Name: Kennewick-Richland, WA
CBSA Type: Metro
CBSA Division: 
CBSA Division Name: 
CBSA Population:253,340
CBSA Division Population:0
MSA: 6740
MSA Name: Richland-Kennewick-Pasco, WA MSA
PMSA Name: 
City State Key:Z16967
Preferred Last Line Key:Z16967
99337: Previous ZIP Code
Next ZIP Code: 99341


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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: 5/1/2022],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],