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St. Louis, MO-IL

Cost of living in Franklin County, MO

Part of the St. Louis Metro Area

Estimated monthly cost
$3,039/mo
for a single person, all categories combined

Population 105,316 · Last updated May 21, 2026

Cost breakdown

Single person, by category, per month.

Rent $984 32%
Federal tax $540 18%
Healthcare $480 16%
Transport $320 11%
Groceries $313 10%
Energy $194 6%
State tax $158 5%
Water $50 2%

Rent in Franklin County

Fair Market Rents by bedroom count.

Studio
$951
per month
1 bedroom
$984
per month
2 bedroom
$1,215
per month
3 bedroom
$1,570
per month
4 bedroom
$1,806
per month

Source: HUD FMR FY2025

Income and earnings in Franklin County

Annual earnings figures from the Census ACS.

Household income
$71,973
per year
Individual earnings
$43,082
per year
Per capita
$36,524
per year

Source: ACS 2019-2023 5-Year.

Home values in Franklin County

Average values reported by homeowners.

Average home value
$214,900
Annual property tax
$1,774

Source: ACS 2019-2023 5-Year

Energy costs in Franklin County

Estimated monthly electricity and gas costs.

Electricity
$142
per month · 14.2¢/kWh
Natural gas
$52
per month
Annual total
$2,328
per year

Source: EIA

Healthcare in Franklin County

Insurance premiums and coverage rates.

Individual premium
$480
per month
Family premium
$1,350
per month
Uninsured rate
7.7%

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 Missouri.

State income tax
4.8%
Top marginal rate
State sales tax
4.2%
Combined sales tax
8.3%
incl. average local

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.

Average commute
28.3 min
Drive alone
78.3%
Public transit
0.1%
Work from home
10.0%

Source: ACS

Monthly cost estimates for Franklin County

What it costs to live in Franklin County each month.

Single person
$3,039
per month
  • Rent $984
  • Energy $194
  • Water $50
  • Groceries $313
  • Transport $320
  • Healthcare $480
  • Federal tax $540
  • State tax $158
Couple
$4,433
per month
  • Rent $1,215
  • Energy $233
  • Water $60
  • Groceries $519
  • Transport $420
  • Healthcare $864
  • Federal tax $848
  • State tax $274
Family
$6,910
per month
  • Rent $1,570
  • Energy $291
  • Water $70
  • Groceries $787
  • Transport $520
  • Healthcare $1,350
  • Childcare $1,200
  • Federal tax $848
  • State tax $274

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, MO, a one-bedroom apartment averages $984 per month, a two-bedroom averages $1,215 per month, a three-bedroom averages $1,570 per month, according to HUD Fair Market Rent data.

What is the average salary in Franklin County?

In Franklin County, MO, the average household income is $71,973 per year and individual earnings for full-time workers average $43,082 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, MO is approximately $3,039 per month for a single person, $4,433 for a couple, $6,910 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, MO is 8.29%, which includes the Missouri state rate of 4.22% plus an average local rate of 4.06%.

Is Franklin County an affordable place to live?

Based on the data, a single person in Franklin County, MO would need approximately $3,039 per month to cover rent, utilities, food, transport, healthcare, and taxes. The average household income is $71,973 per year ($5,998 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, MO is approximately $480 per month for an individual. Approximately 7.7% 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, MO is $214,900, with average annual property taxes of $1,774, according to U.S. Census Bureau data.

How does Franklin County compare to other areas?

You can compare Franklin County, MO with any other US county using our comparison tool at /compare. Franklin County is in the St. Louis, MO-IL metro area.

Other counties in Missouri

Browse the full list of counties in Missouri, ranked by cost of living.

See all counties in Missouri

Compare Franklin County with another area

Put two counties side by side to see how rent, taxes and everyday costs stack up.

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
Methodology All data sources