ZIP Code 61840 - Dewey Illinois
Overview
ZIP Code 61840 is located in Dewey Illinois. Portions of 61840 are also in Mahomet and Condit Township and East Bend Township and Newcomb Township and Mahomet Township and Hensley Township. 61840 is entirely within Champaign County. Regionally, 61840 is located in the Champaign and Springfield Decatur Area.
ZIP Code 61840 Quick Stats
| ZIP Code Name | Dewey |
| Primary County | Champaign County |
| ZIP Code Type | Standard |
| Population (2022) | 530 |
| Area Code(s) | 217 |
| Current Time | CDT |
ZIP Code 61840 Map
61840 Demographics
61840 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 61840 is White. The current unemployment level in 61840 is 5.2%.
| Population | 530 |
| Population Growth Rate | 0% |
| Population Density | 16 People per Square Mile |
| Total Households | 239 |
| Percentage High Income Households | 3.8% |
| Median Household Income (2021) | $76,563 |
| Average Adjusted Gross Income (2021) | $373,400 |
| Current Unemployment Rate (May 2026) | 5.2% |
| Sales Tax Rate (2025) | 7.5% |
| Majority Race/Ethnicity | White - 100% |
61840 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 528 | 100% |
| Black | 0 | 0% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
61840 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 56 | 14.29% |
| Bachelor Degree | 50 | 12.76% |
| High School Diploma | 126 | 32.14% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 6 | 1.53% |
| 1 or More Years of College | 70 | 17.86% |
| Associates Degree | 57 | 14.54% |
| Masters Degree | 8 | 2.04% |
| Professional Degree | 19 | 4.85% |
| Doctorate Degree | 0 | 0% |
61840 Geography
| Coordinates | 40.3038559, -88.29283905 |
| Adjacent ZIP Codes | |
| Cities/Towns in 61840 | |
| Region | Champaign and Springfield Decatur Area |
| Metropolitan/Micropolitan Stat Area | Champaign-Urbana, IL |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 32 Square Miles |
61840 Schools
| School Districts in 61840 | |
| Elementary Schools in 61840 | |
| High Schools in 61840 |
61840 Weather and Climate Data
| Plant Hardiness Zone | Zone 5b: -15F to -10F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 54a - Illinois/Indiana Prairies | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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