ZIP Code 51346 - Hartley Iowa
Overview
ZIP Code 51346 is located in Hartley Iowa. Portions of 51346 are also in Omega Township and Hartley Township and Harrison Township (Osceola County) and Lincoln Township (Obrien County) and Center Township (Obrien County) and Lone Tree Township and Baker Township (Osceola County) and Grant Township (Obrien County) and Clay Township (Clay County) and Waterford Township (Clay County) and Highland Township (Obrien County). 51346 is primarily within Obrien County, with some portions in Osceola County and Clay County. Regionally, 51346 is located in the Sioux City Area.
ZIP Code 51346 Quick Stats
| ZIP Code Name | Hartley |
| Primary County | Obrien County |
| ZIP Code Type | Standard |
| Population (2022) | 2,201 |
| Area Code(s) | 712 |
| Current Time | CDT |
ZIP Code 51346 Map
51346 Demographics
51346 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Iowa based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 51346 is White. The majority race/ethnicity attending public schools in 51346 is White. The current unemployment level in 51346 is 3.3%.
| Population | 2,201 |
| Population Growth Rate | -8.05% |
| Population Density | 15 People per Square Mile |
| Total Households | 992 |
| Percentage High Income Households | 2.1% |
| Median Household Income (2021) | $49,583 |
| Average Adjusted Gross Income (2021) | $431,280 |
| Current Unemployment Rate (May 2026) | 3.3% |
| Sales Tax Rate (2025) | 7% |
| Majority Race/Ethnicity | White - 88.56% |
| Public School Majority Race/Ethnicity | White - 83.5% |
51346 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 1,966 | 88.56% |
| Black | 37 | 1.67% |
| Hispanic | 186 | 8.38% |
| Asian | 0 | 0% |
| Native American | 31 | 1.4% |
| Hawaiian/Pac. Islander | 0 | 0% |
51346 Public School Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 344 | 84.52% |
| Black | 7 | 1.72% |
| Hispanic | 56 | 13.76% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
51346 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 137 | 9.42% |
| Bachelor Degree | 189 | 12.99% |
| High School Diploma | 550 | 37.8% |
| No High School Diploma | 18 | 1.24% |
| GED or Alternate | 66 | 4.54% |
| 1 or More Years of College | 273 | 18.76% |
| Associates Degree | 169 | 11.62% |
| Masters Degree | 16 | 1.1% |
| Professional Degree | 29 | 1.99% |
| Doctorate Degree | 8 | 0.55% |
51346 Geography
| Coordinates | 43.18556595, -95.46312714 |
| Adjacent ZIP Codes | |
| Cities/Towns in 51346 | |
| Regions | Sioux City Area Sioux Falls Area |
| Metropolitan/Micropolitan Stat Area | Spencer, IA |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 150 Square Miles |
51346 Weather and Climate Data
| Plant Hardiness Zone | Zone 4b: -25F to -20F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | May 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 47a - Loess Prairies | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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