Is it cheaper to live in Aurora or Casper?

Casper, WY is cheaper. Its monthly baseline of $930 (1BR rent + utilities) runs about 33% below Aurora, IL's $1,390, mainly because of rent.

How much more do you need to earn to live in Aurora than in Casper?

To keep rent near the recommended 30% of gross income, you'd want to earn roughly $47,000 a year in Aurora versus $31,000 in Casper.

Which has lower taxes, Aurora or Casper?

Aurora is taxed under Illinois's rules (a top state income tax rate of 4.95% and a 6.25% state sales tax); Casper under Wyoming's (no state income tax and a 4% state sales tax).

Aurora vs Casper Cost of Living 2026

Aurora

Illinois

$1,390/mo est.

Casper

Wyoming

$930/mo est.

Monthly estimate = 1BR rent + electricity + gas

A one-person monthly baseline (1BR rent plus typical utilities) runs $1,390 in Aurora, IL versus $930 in Casper, WY. Overall, Casper, WY is roughly 33% cheaper to live in day-to-day than Aurora, IL, driven mainly by rent.

Median household income is $90,109 in Aurora, IL and $69,171 in Casper, WY — about 23% higher in Aurora, IL. Illinois has a top state income tax rate of 4.95% and a 6.25% state sales tax; Wyoming has no state income tax and a 4% state sales tax.

Aurora, IL

Casper, WY

Rent

Studio

$893

$730

+18% in Aurora, IL

1 Bedroom

$1,183

$764

+35% in Aurora, IL

2 Bedroom

$1,550

$930

+40% in Aurora, IL

3 Bedroom

$1,797

$1,299

+28% in Aurora, IL

Buying a Home

Median Home Value

$260,400

$250,700

+4% in Aurora, IL

Income

Median Household Income

$90,109

$69,171

+23% in Aurora, IL

Metro Median Wage (annual)

$54,720

$48,880

+11% in Aurora, IL

People & Lifestyle

Median Age

35.2 yr

37.0 yr

+1.8 yr in Casper, WY

Homeownership

66.8%

70.3%

+3.5 pp in Casper, WY

Bachelor's+ (25+)

37.2%

30.0%

+7.2 pp in Aurora, IL

Avg Commute

28.0 min

16.9 min

+11.1 min in Aurora, IL

Crime (per 100k/yr)

Violent Crime

269.4

302.4

+12% in Casper, WY

Property Crime

1,247.4

2,123.8

+70% in Casper, WY

FBI Crime Data Explorer. Offenses per 100,000 residents per year; agency reporting practices vary, so this is approximate.

Climate

Avg Annual Temperature

49.9°F

45.4°F

+4.5°F in Aurora, IL

Annual Precipitation

36.9 in

12.5 in

+24.4 in in Aurora, IL

Gas

Regular Gasoline

$3.85/gal

$4.27/gal

+11% in Casper, WY

Area: Midwest (PADD 2) vs Rocky Mountain (PADD 4).

Utilities

Electricity (¢/kWh)

19.9

15.2

+23% in Aurora, IL

Natural Gas ($/MCF)

$19.71

$18.28

+7% in Aurora, IL

Residential, state-level averages (EIA). MCF = 1,000 cubic feet.

Groceries

Milk (gal)

$4.31

$4.82

+12% in Casper, WY

Bread (lb)

$1.66

$2.04

+23% in Casper, WY

Eggs (doz)

$3.63

$2.19

+40% in Aurora, IL

Ground Beef (lb)

$6.77

$7.36

+9% in Casper, WY

Chicken (lb)

$2.10

$2.01

+4% in Aurora, IL

Bananas (lb)

$0.62

$0.70

+14% in Casper, WY

Average prices — Midwest vs West (BLS). Regional where available, otherwise U.S. average.

State Taxes

Sales Tax (IL / WY)

6.25%

+2.3 pp in IL

Income Tax (top rate)

4.95%

None

+5.0 pp in IL

Aurora vs Casper — FAQ

Is it cheaper to live in Aurora or Casper?: Casper, WY is cheaper. Its monthly baseline of $930 (1BR rent + utilities) runs about 33% below Aurora, IL's $1,390, mainly because of rent.
How much more do you need to earn to live in Aurora than in Casper?: To keep rent near the recommended 30% of gross income, you'd want to earn roughly $47,000 a year in Aurora versus $31,000 in Casper.
Which has lower taxes, Aurora or Casper?: Aurora is taxed under Illinois's rules (a top state income tax rate of 4.95% and a 6.25% state sales tax); Casper under Wyoming's (no state income tax and a 4% state sales tax).

Sources: US Census Bureau, ACS 5-Year (rent, income, home value, demographics); NOAA Climate Normals 1981–2010 (climate); EIA weekly retail (gas); Tax Foundation 2026 (state taxes).