ZIP Code 98611
| ZIP Code | 98611 |
| City | CASTLE ROCK |
| State | WA |
| Type | STANDARD |
| Post offices count | 1 (see all) |
| Total population | 9,478 (see all) |
Cities in ZIP Code 98611
Primary city: CASTLE ROCK, WAPost offices
CASTLE ROCK — Post Office™ 126 COWLITZ ST W CASTLE ROCK, WA 98611-8998 MoreCASTLE ROCK — Post Office™126 COWLITZ ST W For facility accessibility, please call the Post Office. 1-800-ASK-USPS® (800-275-8777) Hours
Services at this Location Service hours may vary.
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Census data for ZIP Code 98611
Demographic and housing estimates in ZIP Code 98611
| Total population | 9,478 |
| Male | 4,475 |
| Female | 5,003 |
| Total population | 9,478 |
| Under 5 years | 736 |
| 5 to 9 years | 555 |
| 10 to 14 years | 615 |
| 15 to 19 years | 378 |
| 20 to 24 years | 439 |
| 25 to 34 years | 1,310 |
| 35 to 44 years | 996 |
| 45 to 54 years | 1,182 |
| 55 to 59 years | 654 |
| 60 to 64 years | 565 |
| 65 to 74 years | 1,289 |
| 75 to 84 years | 648 |
| 85 years and over | 111 |
| Median age (years) | 42.1 |
| Under 18 years | 2,163 |
| 16 years and over | 7,465 |
| 18 years and over | 7,315 |
| 21 years and over | 7,039 |
| 62 years and over | 2,454 |
| 65 years and over | 2,048 |
| Total population | 9,478 |
| One race | 8,893 |
| White | 8,420 |
| Black or African American | 46 |
| American Indian and Alaska Native | 239 |
| Asian | 29 |
| Native Hawaiian and Other Pacific Islander | 89 |
| Some other race | 70 |
| Two or more races | 585 |
| Citizen, VOTING AGE 18 and over population | 7,293 |
| Male Citizen, VOTING AGE 18 and over population | 3,393 |
| Female Citizen, VOTING AGE 18 and over population | 3,900 |
Social characteristics in ZIP Code 98611
| Total households | 3,309 |
| Family households (families) | 2,009 |
| Married-couple family | 372 |
| Male householder, no wife present, family | 370 |
| Female householder, no husband present, family | 303 |
| Nonfamily households | 558 |
| Average household size | 1,371 |
| Average family size | 2.85 |
Economic characteristics in ZIP Code 98611
| Total households | 3,309 |
| Less than $10,000 | 118 |
| $10,000 to $14,999 | 64 |
| $15,000 to $24,999 | 112 |
| $25,000 to $34,999 | 255 |
| $35,000 to $49,999 | 403 |
| $50,000 to $74,999 | 742 |
| $75,000 to $99,999 | 578 |
| $100,000 to $149,999 | 579 |
| $150,000 to $199,999 | 195 |
| $200,000 or more | 263 |
| Median household income (dollars) | 71,580 |
Housing characteristics in ZIP Code 98611
| Total housing units | 3,487 |
| Occupied housing units | 3,309 |
| Vacant housing units | 178 |
| Total housing units | 3,487 |
| 1-unit, detached | 2,617 |
| 1-unit, attached | 18 |
| 2 units | 85 |
| 3 or 4 units | 52 |
| 5 to 9 units | 14 |
| 10 to 19 units | 0 |
| 20 or more units | 113 |
| Mobile home | 575 |
| Boat, RV, van, etc. | 13 |
| Total housing units | 3,487 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 240 |
| Built 2000 to 2009 | 448 |
| Built 1990 to 1999 | 716 |
| Built 1980 to 1989 | 325 |
| Built 1970 to 1979 | 606 |
| Built 1960 to 1969 | 250 |
| Built 1950 to 1959 | 221 |
| Built 1940 to 1949 | 218 |
| Built 1939 or earlier | 463 |
| Total housing units | 3,487 |
| 1 room | 18 |
| 2 rooms | 15 |
| 3 rooms | 163 |
| 4 rooms | 523 |
| 5 rooms | 672 |
| 6 rooms | 765 |
| 7 rooms | 425 |
| 8 rooms | 389 |
| 9 rooms or more | 517 |
| Median rooms | 6.0 |
| Total housing units | 3,487 |
| No bedroom | 18 |
| 1 bedroom | 189 |
| 2 bedrooms | 700 |
| 3 bedrooms | 1,836 |
| 4 bedrooms | 522 |
| 5 or more bedrooms | 222 |
| Occupied housing units | 3,309 |
| Owner-occupied | 2,674 |
| Renter-occupied | 635 |
| Average household size of owner-occupied unit | 2.77 |
| Average household size of renter-occupied unit | 3.20 |
| Occupied housing units | 3,309 |
| Moved in 2017 or later | 285 |
| Moved in 2015 to 2016 | 771 |
| Moved in 2010 to 2014 | 487 |
| Moved in 2000 to 2009 | 732 |
| Moved in 1990 to 1999 | 540 |
| Moved in 1989 and earlier | 494 |
| Owner-occupied units | 2,674 |
| Less than $50,000 | 77 |
| $50,000 to $99,999 | 93 |
| $100,000 to $149,999 | 121 |
| $150,000 to $199,999 | 402 |
| $200,000 to $299,999 | 788 |
| $300,000 to $499,999 | 962 |
| $500,000 to $999,999 | 221 |
| $1,000,000 or more | 10 |
| Median (dollars) | 281,900 |
| Owner-occupied units | 2,674 |
| Housing units with a mortgage | 1,691 |
| Housing units without a mortgage | 983 |
| Occupied units paying rent | 596 |
| Less than $500 | 46 |
| $500 to $999 | 173 |
| $1,000 to $1,499 | 167 |
| $1,500 to $1,999 | 196 |
| $2,000 to $2,499 | 14 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 0 |
| Median (dollars) | 1,253 |
| No rent paid | 39 |
Data is based on 2021 Census