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Data Updated January 2, 2026 ZIP Code 62236 - Columbia Illinois
62236 Overview
ZIP Code 62236 is located in Columbia Illinois. Portions of 62236 are also in Dupo and Oakville and Waterloo and Sugar Loaf Township and Millstadt Township and Oakville Township. 62236 is primarily within Monroe County, with some portions in Saint Clair County. Regionally, 62236 is located in Metro St. Louis.
Stats Demographics Geography Politics Schools Climate Related Pages ZIP Code 62236 Quick Stats
| ZIP Code Name | Columbia |
| Primary County | Monroe County |
| ZIP Code Type | Standard |
| Population (2022) | 14,630 |
| Area Code(s) | 618 |
| Current Time | CST |
ZIP Code 62236 Map
62236 Demographics
62236 can be classified socioeconomically as 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 62236 is White. The majority race/ethnicity attending public schools in 62236 is White. The current unemployment level in 62236 is 4.8%.
| Population | 14,630 |
| Population Growth Rate | 0.00% |
| Population Density | 239 People per Square Mile |
| Total Households | 4,851 |
| Percentage High Income Households | 5.4% |
| Median Household Income (2021) | $106,436 |
| Average Adjusted Gross Income (2021) | $404,070 |
| Current Unemployment Rate (September 2025) | 4.8% |
| Sales Tax Rate (2025) | 8.5% |
| Majority Race/Ethnicty | White - 97.28% |
| Public School Majority Race/Ethnicty | White - 92.63% |
62236 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 13,967 | 97.28% |
| Black | 6 | 0.04% |
| Hispanic | 273 | 1.9% |
| Asian | 112 | 0.78% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
62236 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
|---|
| White | 1,784 | 94.94% |
| Black | 14 | 0.75% |
| Hispanic | 58 | 3.09% |
| Asian | 19 | 1.01% |
| Native American | 1 | 0.05% |
| Hawaiian/Pac. Islander | 3 | 0.16% |
62236 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
|---|
| Less Than 1 Year of College | 736 | 9.19% |
| Bachelor Degree | 1,809 | 22.59% |
| High School Diploma | 2,163 | 27.01% |
| No High School Diploma | 63 | 0.79% |
| GED or Alternate | 355 | 4.43% |
| 1 or More Years of College | 1,110 | 13.86% |
| Associates Degree | 931 | 11.62% |
| Masters Degree | 637 | 7.95% |
| Professional Degree | 155 | 1.94% |
| Doctorate Degree | 50 | 0.62% |
62236 Geography
| Coordinates | 38.43474960,-90.21121979 |
| Adjacent ZIP Codes | 62239, 62240, 62260, 62295, 62298, 63125, 63129 |
| Cities/Towns in 62236 | Dupo, Oakville, Waterloo, Sugar Loaf Township, Millstadt Township, Oakville Township |
| Region | Metro St. Louis |
| Metropolitan/Micropolitan Stat Area | St. Louis, MO-IL |
| Time Zone | Central Standard Time |
| IANA Timezone | America/Chicago |
| Area | 61 Square Miles |
62236 Schools
| School Districts in 62236 | - Columbia Community Unit School District 4
- Dupo Community Unit School District 196
- Waterloo Community Unit School District 5
- Belleville Township High School District 201
- Valmeyer Community Unit School District 3
|
| Elementary Schools in 62236 | - Bluffview Elementary School
- Valmeyer Elementary School
|
| Middle Schools in 62236 | - Dupo Junior High School
- Valmeyer Junior High School
|
| High Schools in 62236 | - Dupo High School
- Valmeyer High School
- Belleville West High School
|
62236 Weather and Climate Data
| Plant Hardiness Zone | Zone 6b: -5F to 0F |
| Average First Frost Date | October 11 - 20 |
| Average Last Frost Date | April 11 - 20 |
| Koppen-Geiger Climate Zone | Cfa - Humid Subtropical Climate |
| Ecoregion | 72l - Karstic Northern Ozarkian River Bluffs |
62236 Annual Climate Data | | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|
| Avg Min Temp (°F) | 20 | 24 | 35 | 44 | 54 | 63 | 68 | 66 | 58 | 46 | 35 | 25 | 45 | | Avg Max Temp (°F) | 38 | 44 | 55 | 67 | 76 | 85 | 89 | 87 | 80 | 69 | 55 | 43 | 66 | | Avg Precip (In.) | 2.25 | 2.35 | 3.69 | 3.99 | 4.17 | 3.89 | 3.85 | 3.24 | 3.24 | 2.96 | 4.11 | 3.17 | 40.92 |
|
Related Maps and Data:
- Columbia Illinois ZIP Code Map
- Illinois Area Code Map
- Illinois Unemployment Rate Heat Map
- Illinois ZIP Code List
- Illinois ZIP Codes
- Illinois Regions Map
- Metro St. Louis ZIP Code List
- Monroe County Illinois ZIP Code Map
- Saint Clair County Illinois ZIP Code Map
- St. Louis, MO-IL ZIP Code List
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