ZIP Code 52133 - Castalia Iowa
Overview
ZIP Code 52133 is located in Castalia Iowa. Portions of 52133 are also in Bloomfield Township (Winneshiek County) and Clermont Township and Frankville Township and Dover Township (Fayette County). 52133 is primarily within Winneshiek County, with some portions in Fayette County. Regionally, 52133 is located in the Cedar Rapids-Waterloo-Iowa City and Dubuque Area.
ZIP Code 52133 Quick Stats
| ZIP Code Name | Castalia |
| Primary County | Winneshiek County |
| ZIP Code Type | Standard |
| Population (2022) | 627 |
| Area Code(s) | 563 |
| Current Time | CDT |
ZIP Code 52133 Map
52133 Demographics
52133 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 52133 is White. The current unemployment level in 52133 is 3.3%.
| Population | 627 |
| Population Growth Rate | 0% |
| Population Density | 14 People per Square Mile |
| Total Households | 216 |
| Percentage High Income Households | 0.9% |
| Median Household Income (2021) | $59,525 |
| Average Adjusted Gross Income (2021) | $148,130 |
| Current Unemployment Rate (May 2026) | 3.3% |
| Sales Tax Rate (2025) | 7% |
| Majority Race/Ethnicity | White - 85.18% |
52133 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 523 | 85.18% |
| Black | 82 | 13.36% |
| Hispanic | 9 | 1.47% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
52133 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 3 | 0.81% |
| Bachelor Degree | 26 | 7.01% |
| High School Diploma | 228 | 61.46% |
| No High School Diploma | 2 | 0.54% |
| GED or Alternate | 5 | 1.35% |
| 1 or More Years of College | 58 | 15.63% |
| Associates Degree | 16 | 4.31% |
| Masters Degree | 26 | 7.01% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 7 | 1.89% |
52133 Geography
| Coordinates | 43.10538864, -91.67401886 |
| Adjacent ZIP Codes | |
| Cities/Towns in 52133 | |
| Region | Cedar Rapids-Waterloo-Iowa City and Dubuque Area |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 46 Square Miles |
52133 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 | Dfb - Humid Continental Mild Summer, Wet All Year | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 52b - Paleozoic Plateau/Coulee Section | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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