62840 ZIP Code — Frankfort Heights, IL
Franklin County, Illinois
ZIP code 62840 is located in Frankfort Heights, Illinois, within Franklin County. It covers approximately 0.00 square miles and serves a population of 0 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 618.
0
population
0.00
sq mi land
Standard
ZIP type
Central (CT)
timezone
62840 ZIP code map
Cities in ZIP code 62840
Below are the cities the US Postal Service accepts for ZIP code 62840. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Frankfort Heights | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 0 |
| Population density | 0 / sq mi |
| State FIPS | 17 |
| County FIPS | 055 |
| Geography | |
|---|---|
| Land area | 0.00 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 37.9053 |
| Longitude | -88.8946 |
| Timezone | Central (CT) |
| Area code | 618 |