ZIP Code 62351 - Mendon Illinois
Overview
ZIP Code 62351 is located in Mendon Illinois. Portions of 62351 are also in Mendon Township and Honey Creek Township (Adams County) and Lima Township and Keene Township and Walker Township and Camp Point Township and Ursa Township. 62351 is primarily within Adams County, with some portions in Hancock County. Regionally, 62351 is located in Quincy-Hannibal-Keokuk.
ZIP Code 62351 Quick Stats
| ZIP Code Name | Mendon |
| Primary County | Adams County |
| ZIP Code Type | Standard |
| Population (2022) | 1,934 |
| Area Code(s) | 217 |
| Current Time | CDT |
ZIP Code 62351 Map
62351 Demographics
62351 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 62351 is White. The majority race/ethnicity attending public schools in 62351 is White. The current unemployment level in 62351 is 5.2%.
| Population | 1,934 |
| Population Growth Rate | 0% |
| Population Density | 28 People per Square Mile |
| Total Households | 705 |
| Percentage High Income Households | 3.1% |
| Median Household Income (2021) | $70,000 |
| Average Adjusted Gross Income (2021) | $388,230 |
| Current Unemployment Rate (May 2026) | 5.2% |
| Sales Tax Rate (2025) | 6.5% |
| Majority Race/Ethnicity | White - 94.38% |
| Public School Majority Race/Ethnicity | White - 95.37% |
62351 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 1,898 | 94.38% |
| Black | 28 | 1.39% |
| Hispanic | 85 | 4.23% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
62351 Public School Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 638 | 96.52% |
| Black | 5 | 0.76% |
| Hispanic | 17 | 2.57% |
| Asian | 1 | 0.15% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
62351 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 115 | 10.29% |
| Bachelor Degree | 181 | 16.19% |
| High School Diploma | 420 | 37.57% |
| No High School Diploma | 6 | 0.54% |
| GED or Alternate | 89 | 7.96% |
| 1 or More Years of College | 163 | 14.58% |
| Associates Degree | 93 | 8.32% |
| Masters Degree | 39 | 3.49% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 12 | 1.07% |
62351 Geography
| Coordinates | 40.11019135, -91.27306366 |
| Adjacent ZIP Codes | |
| Cities/Towns in 62351 | |
| Region | Quincy-Hannibal-Keokuk |
| Metropolitan/Micropolitan Stat Areas | Quincy, IL-MO Fort Madison-Keokuk, IA-IL-MO |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 70 Square Miles |
62351 Schools
| School Districts in 62351 | |
| Elementary Schools in 62351 | |
| Middle Schools in 62351 | |
| High Schools in 62351 |
62351 Weather and Climate Data
| Plant Hardiness Zone | Zone 5b: -15F to -10F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 72i - Western Dissected Illinoian Till Plain | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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