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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

Zip Code 99350, Prosser, WA

ZIP Code 99350 Details

Zip Code:99350
State:WA [Washington]
Counties:BENTON, WA
Multi County:Yes
City Alias(es):Prosser
City Alias(es) To Avoid Using:North Prosser
Area Code:509
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Pacific (GMT -08:00)
Observes Daylight Saving:Yes
Elevation:587 ft
State FIPS:53
County FIPS:005
Intro Date:<2004-10

ZIP Code 99350 2010 Census Demographics

Current Population:14,026
2010 Population:12,979
Households per ZIP Code:4,240
Average House Value:$208,500
Avg. Income Per Household:$59,536
Persons Per Household:3.05
White Population:9,782
Black Population:107
Hispanic Population:5,441
Asian Population:206
American Indian Population:226
Hawaiian Population:18
Other Population:3,023
Male Population:6,538
Female Population:6,441
Median Age:33.10 years
Male Median Age:32.50 years
Female Median Age:33.90 years

ZIP Code 99350 Other Demographics

# Residential Mailboxes:4,599
# Business Mailboxes:302
Total Delivery Receptacles:7,196
Number of Businesses:243
1st Quarter Payroll:$25,002,000
Annual Payroll:$115,431,000
# of Employees:2,672
Water Area:0.842 sq mi
Land Area:571.506 sq mi
113th Congressional District:03|04
113th Congressional Land Area:9114.01|19250.22 sq mi
Single Family Delivery Units:3,723
Multi Family Delivery Units:308
# Residential Mailboxes:4,599
# Business Mailboxes:302
Total Delivery Receptacles:7,196

ZIP Code 99350 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 2,260 2,315 +55
Retired Workers: 1,605 1,685 +80
Disabled Workers: 290 280 -10
Widow(er)s and Parents: 140 135 -5
Spouses: 80 90 +10
Children: 145 125 -20
65+: 1,715 1,815 +100
Monthly Benefits - All: $3,026,000 $3,235,000 +$209,000
Monthly Benefits - Retired Workers: $2,308,000 $2,521,000 +$213,000
Monthly Benefits - Widow(ers): $205,000 $204,000 ($1,000)

ZIP Code 99350 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:Z17314
Preferred Last Line Key:Z17314
99349: Previous ZIP Code
Next ZIP Code: 99352


  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],