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Ottawa, IL

Cost of living in LaSalle County, IL

Estimated monthly cost
$2,825/mo
for a single person, all categories combined

Population 109,049 · Last updated May 21, 2026

Cost breakdown

Single person, by category, per month.

Rent $777 28%
Federal tax $507 18%
Healthcare $480 17%
Groceries $345 12%
Transport $320 11%
Energy $177 6%
State tax $169 6%
Water $50 2%

Rent in LaSalle County

Fair Market Rents by bedroom count.

Studio
$747
per month
1 bedroom
$777
per month
2 bedroom
$1,020
per month
3 bedroom
$1,373
per month
4 bedroom
$1,545
per month

Source: HUD FMR FY2025

Income and earnings in LaSalle County

Annual earnings figures from the Census ACS.

Household income
$72,281
per year
Individual earnings
$41,074
per year
Per capita
$38,079
per year

Source: ACS 2019-2023 5-Year.

Home values in LaSalle County

Average values reported by homeowners.

Average home value
$154,900
Annual property tax
$3,336

Source: ACS 2019-2023 5-Year

Energy costs in LaSalle County

Estimated monthly electricity and gas costs.

Electricity
$116
per month · 16.5¢/kWh
Natural gas
$61
per month
Annual total
$2,124
per year

Source: EIA

Healthcare in LaSalle County

Insurance premiums and coverage rates.

Individual premium
$480
per month
Family premium
$1,350
per month
Uninsured rate
4.0%

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 LaSalle County

State and local tax rates for Illinois.

State income tax
5.0%
Flat rate
State sales tax
6.3%
Combined sales tax
8.8%
incl. average local

Tax rates change. Consult a qualified tax professional for advice on your specific situation. This is not tax advice.

Transportation in LaSalle County

Commute patterns and estimated costs.

Average commute
26.1 min
Drive alone
84.0%
Public transit
0.1%
Work from home
4.6%

Source: ACS

Monthly cost estimates for LaSalle County

What it costs to live in LaSalle County each month.

Single person
$2,825
per month
  • Rent $777
  • Energy $177
  • Water $50
  • Groceries $345
  • Transport $320
  • Healthcare $480
  • Federal tax $507
  • State tax $169
Couple
$4,299
per month
  • Rent $1,020
  • Energy $212
  • Water $60
  • Groceries $572
  • Transport $420
  • Healthcare $864
  • Federal tax $853
  • State tax $298
Family
$6,797
per month
  • Rent $1,373
  • Energy $266
  • Water $70
  • Groceries $867
  • Transport $520
  • Healthcare $1,350
  • Childcare $1,200
  • Federal tax $853
  • State tax $298

Frequently asked questions about LaSalle County

Common questions about cost of living, rent and salary.

What is the average rent in LaSalle County?

In LaSalle County, IL, a one-bedroom apartment averages $777 per month, a two-bedroom averages $1,020 per month, a three-bedroom averages $1,373 per month, according to HUD Fair Market Rent data.

What is the average salary in LaSalle County?

In LaSalle County, IL, the average household income is $72,281 per year and individual earnings for full-time workers average $41,074 per year, according to U.S. Census Bureau data.

What is the cost of living in LaSalle County?

The estimated cost of living in LaSalle County, IL is approximately $2,825 per month for a single person, $4,299 for a couple, $6,797 for a family. This includes rent, utilities, groceries, transportation, healthcare, and taxes.

What is the sales tax rate in LaSalle County?

The combined sales tax rate in LaSalle County, IL is 8.82%, which includes the Illinois state rate of 6.25% plus an average local rate of 2.57%.

Is LaSalle County an affordable place to live?

Based on the data, a single person in LaSalle County, IL would need approximately $2,825 per month to cover rent, utilities, food, transport, healthcare, and taxes. The average household income is $72,281 per year ($6,023 per month). LaSalle County is relatively affordable compared to the national average.

How much does healthcare cost in LaSalle County?

The ACA marketplace benchmark premium in LaSalle County, IL is approximately $480 per month for an individual. Approximately 4.0% of residents are uninsured. Actual costs vary based on employer coverage, plan type, and individual circumstances.

What are house prices in LaSalle County?

The average home value in LaSalle County, IL is $154,900, with average annual property taxes of $3,336, according to U.S. Census Bureau data.

How does LaSalle County compare to other areas?

You can compare LaSalle County, IL with any other US county using our comparison tool at /compare. LaSalle County is in the Ottawa, IL metro area.

Other counties in Illinois

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

See all counties in Illinois

Compare LaSalle 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