ZIP Code 51103
| ZIP Code | 51103 |
| City | SIOUX CITY |
| State | IA |
| Type | STANDARD |
| Post offices count | 1 (see all) |
| Total population | 17,176 (see all) |
Cities in ZIP Code 51103
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 51103
Demographic and housing estimates in ZIP Code 51103
| Total population | 17,176 |
| Male | 8,086 |
| Female | 9,090 |
| Total population | 17,176 |
| Under 5 years | 1,199 |
| 5 to 9 years | 1,252 |
| 10 to 14 years | 1,637 |
| 15 to 19 years | 1,101 |
| 20 to 24 years | 1,198 |
| 25 to 34 years | 2,248 |
| 35 to 44 years | 1,790 |
| 45 to 54 years | 2,270 |
| 55 to 59 years | 958 |
| 60 to 64 years | 949 |
| 65 to 74 years | 1,735 |
| 75 to 84 years | 608 |
| 85 years and over | 231 |
| Median age (years) | 34.9 |
| Under 18 years | 4,787 |
| 16 years and over | 12,777 |
| 18 years and over | 12,389 |
| 21 years and over | 11,634 |
| 62 years and over | 3,201 |
| 65 years and over | 2,574 |
| Total population | 17,176 |
| One race | 15,357 |
| White | 11,631 |
| Black or African American | 625 |
| American Indian and Alaska Native | 999 |
| Asian | 758 |
| Native Hawaiian and Other Pacific Islander | 210 |
| Some other race | 1,134 |
| Two or more races | 1,819 |
| Citizen, VOTING AGE 18 and over population | 11,188 |
| Male Citizen, VOTING AGE 18 and over population | 5,031 |
| Female Citizen, VOTING AGE 18 and over population | 6,157 |
Social characteristics in ZIP Code 51103
| Total households | 6,448 |
| Family households (families) | 2,329 |
| Married-couple family | 675 |
| Male householder, no wife present, family | 1,161 |
| Female householder, no husband present, family | 754 |
| Nonfamily households | 2,283 |
| Average household size | 2,025 |
| Average family size | 2.60 |
Economic characteristics in ZIP Code 51103
| Total households | 6,448 |
| Less than $10,000 | 562 |
| $10,000 to $14,999 | 429 |
| $15,000 to $24,999 | 655 |
| $25,000 to $34,999 | 549 |
| $35,000 to $49,999 | 1,015 |
| $50,000 to $74,999 | 1,356 |
| $75,000 to $99,999 | 780 |
| $100,000 to $149,999 | 772 |
| $150,000 to $199,999 | 213 |
| $200,000 or more | 117 |
| Median household income (dollars) | 50,179 |
Housing characteristics in ZIP Code 51103
| Total housing units | 6,863 |
| Occupied housing units | 6,448 |
| Vacant housing units | 415 |
| Total housing units | 6,863 |
| 1-unit, detached | 5,314 |
| 1-unit, attached | 45 |
| 2 units | 426 |
| 3 or 4 units | 227 |
| 5 to 9 units | 229 |
| 10 to 19 units | 154 |
| 20 or more units | 309 |
| Mobile home | 159 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 6,863 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 189 |
| Built 2000 to 2009 | 314 |
| Built 1990 to 1999 | 390 |
| Built 1980 to 1989 | 157 |
| Built 1970 to 1979 | 579 |
| Built 1960 to 1969 | 567 |
| Built 1950 to 1959 | 860 |
| Built 1940 to 1949 | 1,033 |
| Built 1939 or earlier | 2,774 |
| Total housing units | 6,863 |
| 1 room | 208 |
| 2 rooms | 123 |
| 3 rooms | 410 |
| 4 rooms | 992 |
| 5 rooms | 1,273 |
| 6 rooms | 1,635 |
| 7 rooms | 766 |
| 8 rooms | 725 |
| 9 rooms or more | 731 |
| Median rooms | 5.8 |
| Total housing units | 6,863 |
| No bedroom | 219 |
| 1 bedroom | 722 |
| 2 bedrooms | 1,907 |
| 3 bedrooms | 2,655 |
| 4 bedrooms | 1,138 |
| 5 or more bedrooms | 222 |
| Occupied housing units | 6,448 |
| Owner-occupied | 4,064 |
| Renter-occupied | 2,384 |
| Average household size of owner-occupied unit | 2.44 |
| Average household size of renter-occupied unit | 2.86 |
| Occupied housing units | 6,448 |
| Moved in 2017 or later | 740 |
| Moved in 2015 to 2016 | 1,822 |
| Moved in 2010 to 2014 | 1,059 |
| Moved in 2000 to 2009 | 1,522 |
| Moved in 1990 to 1999 | 465 |
| Moved in 1989 and earlier | 840 |
| Owner-occupied units | 4,064 |
| Less than $50,000 | 404 |
| $50,000 to $99,999 | 1,685 |
| $100,000 to $149,999 | 1,167 |
| $150,000 to $199,999 | 392 |
| $200,000 to $299,999 | 285 |
| $300,000 to $499,999 | 48 |
| $500,000 to $999,999 | 61 |
| $1,000,000 or more | 22 |
| Median (dollars) | 98,300 |
| Owner-occupied units | 4,064 |
| Housing units with a mortgage | 2,418 |
| Housing units without a mortgage | 1,646 |
| Occupied units paying rent | 2,318 |
| Less than $500 | 335 |
| $500 to $999 | 1,428 |
| $1,000 to $1,499 | 524 |
| $1,500 to $1,999 | 25 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 6 |
| Median (dollars) | 826 |
| No rent paid | 66 |
Data is based on 2021 Census