ZIP code 51106
Where is ZIP code 51106?
Sioux City, Iowa
Woodbury County · Standard ZIP code
ZIP code 51106 belongs to Sioux City, Iowa in Woodbury County. 51106 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area codes 402, 531 and 712. About 28,592 people live in the 51106 area, where the median household income is $78,434. The closest ZIP codes are 51105 (Sioux City, 2.9 mi northwest), 51101 (Sioux City, 3.3 mi northwest) and 68776 (South Sioux City, 3.3 mi west).
| ZIP code | 51106 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Sioux City |
| State | Iowa (IA) |
| County | Woodbury County |
| Time zone | Central Time · now |
| Area codes | 402, 531, 712 |
| Coordinates | 42.4671, -96.3528 map |
| 3-digit prefix | 511 |
Population and income in 51106
| Population | 28,592 · higher than 97% of Iowa ZIP codes |
|---|---|
| People per square mile | 854 · higher than 93% of Iowa ZIP codes |
| Median age | 36.4 years · lower than 84% of Iowa ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $78,434 · higher than 60% of Iowa ZIP codes |
| Income per person | $39,145 |
| Below the poverty line | 14% |
| Bachelor’s degree or higher | 29% of adults 25+ |
| Median home value | $200,200 · higher than 71% of Iowa ZIP codes |
| Median rent | $1,117 a month |
| Housing units | 11,843 |
| Households | 11,249 (2.42 people on average) |
| Owners / renters | 70% / 30% |
| Land area | 33.49 sq mi (plus 0.43 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 51106. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 51106
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 51105 | Sioux City, IA | 2.9 mi NW | Standard |
| 51101 | Sioux City, IA | 3.3 mi NW | Standard |
| 68776 | South Sioux City, NE | 3.3 mi W | Standard |
| 51111 | Sioux City, IA | 4.1 mi S | Standard |
| 51054 | Sergeant Bluff, IA | 4.5 mi S | Standard |
| 51104 | Sioux City, IA | 4.7 mi NW | Standard |
| 51103 | Sioux City, IA | 4.8 mi NW | Standard |
| 51108 | Sioux City, IA | 5.5 mi N | Standard |
| 51102 | Sioux City, IA | 7 mi S | PO Box only |
| 51030 | Lawton, IA | 7.3 mi E | Standard |
| 51109 | Sioux City, IA | 7.4 mi NW | Standard |
| 68731 | Dakota City, NE | 7.9 mi SW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 51106 or measure the distance to another ZIP code.
How to address mail to 51106
123 MAIN ST
SIOUX CITY IA 51106
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (51106-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Sioux City, IA
All Sioux City ZIP codes with population and income →
Questions
- What city is ZIP code 51106?
- 51106 is a Sioux City, Iowa ZIP code.
- What county is 51106 in?
- ZIP code 51106 is in Woodbury County, Iowa.
- What time zone is ZIP code 51106 in?
- 51106 is in the Central Time zone (America/Chicago).
- What area code is 51106?
- Phone numbers in ZIP code 51106 use area codes 402, 531 and 712.
- What is the population of ZIP code 51106?
- About 28,592 people live in ZIP code 51106, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 51106?
- The median household income in 51106 is $78,434 a year, higher than 60% of Iowa ZIP codes.
- What ZIP codes are near 51106?
- The nearest ZIP codes to 51106 are 51105 (Sioux City, 2.9 miles), 51101 (Sioux City, 3.3 miles), 68776 (South Sioux City, 3.3 miles) and 51111 (Sioux City, 4.1 miles).