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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2023

Zip Code 98611, Castle Rock, WA

ZIP Code 98611 Details

Zip Code:98611
City:Castle Rock
State:WA [Washington]
Counties:COWLITZ, WA
Multi County:No
City Alias(es):Castle Rock
Area Code:360 / 564
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Pacific (GMT -08:00)
Observes Daylight Saving:Yes
Elevation:617 ft
State FIPS:53
County FIPS:015
Intro Date:<2004-10

ZIP Code 98611 2020 Census Demographics

Current Population:9,828
2020 Population:10,165
Households per ZIP Code:3,836
Average House Value:$281,900
Avg. Income Per Household:$71,580
Persons Per Household:2.64
White Population:8,956
Black Population:31
Hispanic Population:465
Asian Population:61
American Indian Population:182
Hawaiian Population:27
Other Population:154
Male Population:5,110
Female Population:5,055
Median Age:45.50 years
Male Median Age:44.70 years
Female Median Age:46.20 years

ZIP Code 98611 Other Demographics

# Residential Mailboxes:3,723
# Business Mailboxes:47
Total Delivery Receptacles:5,005
Number of Businesses:151
1st Quarter Payroll:$7,212,000
Annual Payroll:$34,361,000
# of Employees:790
Water Area:1.472 sq mi
Land Area:136.125 sq mi
118th Congressional District:03
118th Congressional Land Area:9114.01 sq mi
Single Family Delivery Units:3,351
Multi Family Delivery Units:24
# Residential Mailboxes:3,723
# Business Mailboxes:47
Total Delivery Receptacles:5,005

ZIP Code 98611 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 2,885 2,950 +65
Retired Workers: 1,935 2,005 +70
Disabled Workers: 445 440 -5
Widow(er)s and Parents: 200 200 0
Spouses: 160 170 +10
Children: 145 135 -10
65+: 2,145 2,215 +70
Monthly Benefits - All: $4,112,000 $4,295,000 +$183,000
Monthly Benefits - Retired Workers: $2,961,000 $3,139,000 +$178,000
Monthly Benefits - Widow(ers): $295,000 $296,000 +$1,000

ZIP Code 98611 Statistical Areas

CBSA Name: 
CBSA Type: 
CBSA Division: 
CBSA Division Name: 
CBSA Population:0
CBSA Division Population:0
MSA Name: 
PMSA Name: 
City State Key:Z16575
Preferred Last Line Key:Z16575
98610: Previous ZIP Code
Next ZIP Code: 98612


  1. U.S. Postal Service [Last Updated: 5/1/2023],
  2. Internal Data Creation [Last Updated: 5/1/2023],
  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: 5/1/2023],
  6. U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],