ZIP Code 62018 - Cottage Hills Illinois
Overview
ZIP Code 62018 is located in Cottage Hills Illinois. Portions of 62018 are also in Bethalto and East Alton and Rosewood Heights and Alton and Wood River Township and Alton Township. 62018 is entirely within Madison County. Regionally, 62018 is located in Metro St. Louis.
ZIP Code 62018 Quick Stats
| ZIP Code Name | Cottage Hills |
| Primary County | Madison County |
| ZIP Code Type | Standard |
| Population (2022) | 2,954 |
| Area Code(s) | 618 |
| Current Time | CDT |
ZIP Code 62018 Map
62018 Demographics
62018 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Illinois based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 62018 is White. The current unemployment level in 62018 is 5.2%.
| Population | 2,954 |
| Population Growth Rate | 0% |
| Population Density | 1,106 People per Square Mile |
| Total Households | 1,563 |
| Percentage High Income Households | 0.4% |
| Median Household Income (2021) | $44,662 |
| Average Adjusted Gross Income (2021) | $134,360 |
| Current Unemployment Rate (May 2026) | 5.2% |
| Sales Tax Rate (2025) | 7.8% |
| Majority Race/Ethnicity | White - 91.68% |
62018 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 2,701 | 91.68% |
| Black | 96 | 3.26% |
| Hispanic | 149 | 5.06% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
62018 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 249 | 10.88% |
| Bachelor Degree | 73 | 3.19% |
| High School Diploma | 774 | 33.83% |
| No High School Diploma | 20 | 0.87% |
| GED or Alternate | 507 | 22.16% |
| 1 or More Years of College | 412 | 18.01% |
| Associates Degree | 203 | 8.87% |
| Masters Degree | 29 | 1.27% |
| Professional Degree | 14 | 0.61% |
| Doctorate Degree | 7 | 0.31% |
62018 Geography
| Coordinates | 38.91054916, -90.08242035 |
| Adjacent ZIP Codes | |
| Cities/Towns in 62018 | |
| Region | Metro St. Louis |
| Metropolitan/Micropolitan Stat Area | St. Louis, MO-IL |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 3 Square Miles |
62018 Schools
| School Districts in 62018 |
62018 Weather and Climate Data
| Plant Hardiness Zone | Zone 6b: -5F to 0F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 72f - River Hills | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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