Sioux County, IA ZIP Codes
16 ZIP codes cover all or part of Sioux County, Iowa. The Census Bureau counts 36,212 residents in the county, with a median household income of $86,098 and a median home value of $250,100. Median household income ranges from $68,799 in 51201 to $101,250 in 51003. Its largest communities include Sioux Center, Orange City, Sheldon, Rock Valley and Hawarden.
Sioux County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 36,212 |
| Households | 12,690 |
| Median household income | $86,098 |
| Median home value | $250,100 |
| Median age | 33.8 |
| Median rent | $908 |
All 16 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 45,237 |
| Households (sum of ZIP codes) | 16,283 |
| Median household income, range across ZIP codes | $68,799 (51201) to $101,250 (51003) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $83,151 |
| Homeowners | 75.8% |
| Households with kids under 18 | 33.9% |
| Moved in the past year | 10.8% |
| Carrier routes in EDDM2GO's route library | 16 routes, 4,922 homes (8 of 16 ZIP codes) |
Top facts
- Highest median household income in Sioux County: 51003 ($101,250)
- Most residents: 51250 (9,970 people)
- Highest homeownership: 51234 (90.5% own their home)
- Most households with kids: 51027 (46.0% of households)
- Most new movers: 51201 (18.9% moved in last year)
- Youngest median age: 51041 (30.9 years)
- Highest median home value: 51250 ($294,000)
Every ZIP code in Sioux County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 51250 | Sioux Center | 9,970 | 3,373 | $94,119 | $294,000 | 78.4% | 39.5% | 9.9% | 7 | 3,542 | 100% of its land |
| 51041 | Orange City | 7,324 | 2,520 | $83,643 | $277,000 | 68.4% | 33.1% | 11.0% | — | — | 100% of its land |
| 51201 | Sheldon | 6,430 | 2,550 | $68,799 | $197,800 | 71.6% | 27.4% | 18.9% | — | — | 49% of its land |
| 51247 | Rock Valley | 5,094 | 1,825 | $78,358 | $262,900 | 61.1% | 30.2% | 4.8% | — | — | 95% of its land |
| 51023 | Hawarden | 3,473 | 1,236 | $80,357 | $173,300 | 70.9% | 33.3% | 18.5% | — | — | 70% of its land |
| 51239 | Hull | 2,876 | 1,051 | $77,540 | $236,500 | 84.0% | 42.5% | 9.9% | — | — | 93% of its land |
| 51003 | Alton | 1,938 | 730 | $101,250 | $232,700 | 87.1% | 34.8% | 12.6% | — | — | 100% of its land |
| 51240 | Inwood | 1,914 | 632 | $83,929 | $232,600 | 86.9% | 42.2% | 7.9% | 2 | 442 | 15% of its land |
| 51238 | Hospers | 1,502 | 556 | $74,000 | $182,500 | 87.9% | 27.5% | 0.5% | 2 | 251 | 68% of its land |
| 51027 | Ireton | 1,280 | 415 | $100,893 | $227,200 | 82.7% | 46.0% | 12.0% | — | — | 84% of its land |
| 51234 | Boyden | 1,172 | 412 | $84,318 | $211,800 | 90.5% | 37.1% | 6.6% | 1 | 355 | 100% of its land |
| 51022 | Granville | 960 | 385 | $96,505 | $174,800 | 89.1% | 31.4% | 2.1% | 1 | 235 | 40% of its land |
| 57034 | Hudson | 661 | 300 | $89,688 | $194,300 | 87.7% | 20.7% | 7.3% | 1 | 180 | 8% of its land |
| 51036 | Maurice | 445 | 209 | $122,841 | $248,600 | 91.9% | 14.4% | 0.2% | 1 | 183 | 100% of its land |
| 51244 | Matlock | 144 | 59 | $83,365 | $95,000 | 96.6% | 27.1% | 3.5% | 1 | 34 | 100% of its land |
| 51011 | Chatsworth | 54 | 30 | $44,375 | — | 86.7% | 13.3% | 29.6% | — | — | 100% of its land |
A ZIP code is listed for Sioux County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Sioux Center — 8,454 residents · 1 ZIP code
- Orange City — 6,426 residents · 1 ZIP code
- Sheldon — 5,474 residents · 1 ZIP code
- Rock Valley — 4,059 residents · 1 ZIP code
- Hawarden — 2,658 residents · 1 ZIP code
- Hull — 2,317 residents · 1 ZIP code
- Alton — 1,459 residents · 1 ZIP code
- Hospers — 916 residents · 1 ZIP code
- Boyden — 757 residents · 1 ZIP code
- Ireton — 552 residents · 1 ZIP code
- Maurice — 206 residents · 1 ZIP code
- Matlock — 144 residents · 1 ZIP code
- Chatsworth — 54 residents · 2 ZIP codes
Rankings
- Richest ZIP codes in Sioux County — 11 ZIP codes ranked
- ZIP codes with the highest home values in Sioux County — 11 ZIP codes ranked
- ZIP codes with the highest homeownership in Sioux County — 11 ZIP codes ranked
- ZIP codes with the most families with kids in Sioux County — 11 ZIP codes ranked
- ZIP codes with the most new movers in Sioux County — 11 ZIP codes ranked
- Youngest ZIP codes in Sioux County — 11 ZIP codes ranked
- Oldest ZIP codes in Sioux County — 11 ZIP codes ranked
- Fastest-growing ZIP codes in Sioux County — 11 ZIP codes ranked
Price a mailing to Sioux County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Sioux County, IA?
- 51250, 51041, 51201, 51247, 51023, 51239, 51003, 51240, 51238, 51027, 51234, 51022, 57034, 51036, 51244 and 51011. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Sioux County?
- 36,212 residents in 12,690 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Sioux County?
- $86,098 for the county as a whole. Its ZIP codes range from $68,799 (51201) to $101,250 (51003).
- Which Sioux County ZIP code has the highest median household income?
- 51003, at $101,250, among ZIP codes with at least 1,000 residents. See the full ranking of Sioux County ZIP codes by income.
- How many carrier routes and mailboxes are in Sioux County?
- For the 8 of 16 ZIP codes in EDDM2GO's stored route library: 16 carrier routes reaching 4,922 residential and 299 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.