ZIP Code 51105
| ZIP Code | 51105 |
| City | SIOUX CITY |
| State | IA |
| Type | STANDARD |
| Post offices count | 1 (see all) |
| Total population | 10,902 (see all) |
Cities in ZIP Code 51105
Primary city: SIOUX CITY, IAPost offices
SIOUX CITY — Post Office™ 214 JACKSON ST SIOUX CITY, IA 51101-9998 MoreSIOUX CITY — Post Office™214 JACKSON ST 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 51105
Demographic and housing estimates in ZIP Code 51105
| Total population | 10,902 |
| Male | 5,458 |
| Female | 5,444 |
| Total population | 10,902 |
| Under 5 years | 1,144 |
| 5 to 9 years | 1,001 |
| 10 to 14 years | 738 |
| 15 to 19 years | 998 |
| 20 to 24 years | 660 |
| 25 to 34 years | 1,781 |
| 35 to 44 years | 1,634 |
| 45 to 54 years | 1,268 |
| 55 to 59 years | 533 |
| 60 to 64 years | 416 |
| 65 to 74 years | 502 |
| 75 to 84 years | 174 |
| 85 years and over | 53 |
| Median age (years) | 30.2 |
| Under 18 years | 3,538 |
| 16 years and over | 7,740 |
| 18 years and over | 7,364 |
| 21 years and over | 6,981 |
| 62 years and over | 1,012 |
| 65 years and over | 729 |
| Total population | 10,902 |
| One race | 8,571 |
| White | 6,496 |
| Black or African American | 1,139 |
| American Indian and Alaska Native | 397 |
| Asian | 241 |
| Native Hawaiian and Other Pacific Islander | 46 |
| Some other race | 252 |
| Two or more races | 2,331 |
| Citizen, VOTING AGE 18 and over population | 5,874 |
| Male Citizen, VOTING AGE 18 and over population | 2,915 |
| Female Citizen, VOTING AGE 18 and over population | 2,959 |
Social characteristics in ZIP Code 51105
| Total households | 3,886 |
| Family households (families) | 1,276 |
| Married-couple family | 454 |
| Male householder, no wife present, family | 1,022 |
| Female householder, no husband present, family | 659 |
| Nonfamily households | 1,134 |
| Average household size | 613 |
| Average family size | 2.80 |
Economic characteristics in ZIP Code 51105
| Total households | 3,886 |
| Less than $10,000 | 394 |
| $10,000 to $14,999 | 172 |
| $15,000 to $24,999 | 604 |
| $25,000 to $34,999 | 501 |
| $35,000 to $49,999 | 523 |
| $50,000 to $74,999 | 813 |
| $75,000 to $99,999 | 450 |
| $100,000 to $149,999 | 346 |
| $150,000 to $199,999 | 41 |
| $200,000 or more | 42 |
| Median household income (dollars) | 41,469 |
Housing characteristics in ZIP Code 51105
| Total housing units | 4,218 |
| Occupied housing units | 3,886 |
| Vacant housing units | 332 |
| Total housing units | 4,218 |
| 1-unit, detached | 2,053 |
| 1-unit, attached | 63 |
| 2 units | 271 |
| 3 or 4 units | 379 |
| 5 to 9 units | 245 |
| 10 to 19 units | 125 |
| 20 or more units | 512 |
| Mobile home | 570 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 4,218 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 104 |
| Built 2000 to 2009 | 215 |
| Built 1990 to 1999 | 282 |
| Built 1980 to 1989 | 48 |
| Built 1970 to 1979 | 231 |
| Built 1960 to 1969 | 278 |
| Built 1950 to 1959 | 387 |
| Built 1940 to 1949 | 208 |
| Built 1939 or earlier | 2,465 |
| Total housing units | 4,218 |
| 1 room | 388 |
| 2 rooms | 128 |
| 3 rooms | 234 |
| 4 rooms | 1,137 |
| 5 rooms | 991 |
| 6 rooms | 505 |
| 7 rooms | 332 |
| 8 rooms | 202 |
| 9 rooms or more | 301 |
| Median rooms | 4.7 |
| Total housing units | 4,218 |
| No bedroom | 408 |
| 1 bedroom | 568 |
| 2 bedrooms | 1,395 |
| 3 bedrooms | 1,288 |
| 4 bedrooms | 395 |
| 5 or more bedrooms | 164 |
| Occupied housing units | 3,886 |
| Owner-occupied | 1,608 |
| Renter-occupied | 2,278 |
| Average household size of owner-occupied unit | 3.05 |
| Average household size of renter-occupied unit | 2.62 |
| Occupied housing units | 3,886 |
| Moved in 2017 or later | 440 |
| Moved in 2015 to 2016 | 1,460 |
| Moved in 2010 to 2014 | 711 |
| Moved in 2000 to 2009 | 637 |
| Moved in 1990 to 1999 | 330 |
| Moved in 1989 and earlier | 308 |
| Owner-occupied units | 1,608 |
| Less than $50,000 | 431 |
| $50,000 to $99,999 | 810 |
| $100,000 to $149,999 | 153 |
| $150,000 to $199,999 | 110 |
| $200,000 to $299,999 | 104 |
| $300,000 to $499,999 | 0 |
| $500,000 to $999,999 | 0 |
| $1,000,000 or more | 0 |
| Median (dollars) | 70,300 |
| Owner-occupied units | 1,608 |
| Housing units with a mortgage | 936 |
| Housing units without a mortgage | 672 |
| Occupied units paying rent | 2,240 |
| Less than $500 | 383 |
| $500 to $999 | 1,445 |
| $1,000 to $1,499 | 388 |
| $1,500 to $1,999 | 24 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 0 |
| Median (dollars) | 734 |
| No rent paid | 38 |
Data is based on 2021 Census