Cost of living in Franklin County, IL
Population 37,541 · Last updated May 21, 2026
Cost breakdown
Single person, by category, per month.
Rent in Franklin County
Fair Market Rents by bedroom count.
Source: HUD FMR FY2025
Income and earnings in Franklin County
Annual earnings figures from the Census ACS.
Source: ACS 2019-2023 5-Year.
Home values in Franklin County
Average values reported by homeowners.
Source: ACS 2019-2023 5-Year
Energy costs in Franklin County
Estimated monthly electricity and gas costs.
Source: EIA
Healthcare in Franklin County
Insurance premiums and coverage rates.
Source: ACS + national avg. Marketplace benchmark premiums are second-lowest Silver plan estimates and do not reflect employer plans, subsidies, or out-of-pocket costs. This is not healthcare advice.
Taxes in Franklin County
State and local tax rates for Illinois.
Tax rates change. Consult a qualified tax professional for advice on your specific situation. This is not tax advice.
Transportation in Franklin County
Commute patterns and estimated costs.
Source: ACS
Monthly cost estimates for Franklin County
What it costs to live in Franklin County each month.
- Rent $663
- Energy $177
- Water $50
- Groceries $345
- Transport $320
- Healthcare $480
- Federal tax $413
- State tax $146
- Rent $870
- Energy $212
- Water $60
- Groceries $572
- Transport $420
- Healthcare $864
- Federal tax $545
- State tax $221
- Rent $1,104
- Energy $266
- Water $70
- Groceries $867
- Transport $520
- Healthcare $1,350
- Childcare $1,200
- Federal tax $545
- State tax $221
Frequently asked questions about Franklin County
Common questions about cost of living, rent and salary.
What is the average rent in Franklin County?
In Franklin County, IL, a one-bedroom apartment averages $663 per month, a two-bedroom averages $870 per month, a three-bedroom averages $1,104 per month, according to HUD Fair Market Rent data.
What is the average salary in Franklin County?
In Franklin County, IL, the average household income is $53,471 per year and individual earnings for full-time workers average $35,324 per year, according to U.S. Census Bureau data.
What is the cost of living in Franklin County?
The estimated cost of living in Franklin County, IL is approximately $2,594 per month for a single person, $3,764 for a couple, $6,143 for a family. This includes rent, utilities, groceries, transportation, healthcare, and taxes.
What is the sales tax rate in Franklin County?
The combined sales tax rate in Franklin County, IL is 8.82%, which includes the Illinois state rate of 6.25% plus an average local rate of 2.57%.
Is Franklin County an affordable place to live?
Based on the data, a single person in Franklin County, IL would need approximately $2,594 per month to cover rent, utilities, food, transport, healthcare, and taxes. The average household income is $53,471 per year ($4,456 per month). Franklin County has a moderate cost of living relative to local earnings.
How much does healthcare cost in Franklin County?
The ACA marketplace benchmark premium in Franklin County, IL is approximately $480 per month for an individual. Approximately 7.5% of residents are uninsured. Actual costs vary based on employer coverage, plan type, and individual circumstances.
What are house prices in Franklin County?
The average home value in Franklin County, IL is $87,700, with average annual property taxes of $1,316, according to U.S. Census Bureau data.
How does Franklin County compare to other areas?
You can compare Franklin County, IL with any other US county using our comparison tool at /compare. Franklin County is in Illinois.
Other counties in Illinois
Browse the full list of counties in Illinois, ranked by cost of living.
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About this data
All figures on this page come from official U.S. government sources, listed below.
- HUD FMR FY2025
- ACS 2019-2023 5-Year
- EIA
- ACS + national avg
- ACS
- USDA + BEA RPP