Monthly Budget in Decatur for a Single Adult
What it costs one working adult, no dependents to live in Decatur, IL in 2026.
$2,905
Total Monthly
$58,096
Annual Salary Needed
$3,631/mo after tax
78
Cost Index
Direct Answer
A single adult in Decatur, IL should budget about $2,905/mo before savings. To keep a 20% savings margin, the estimated salary target is $58,096/year, or $3,631/mo after tax.
This budget is built for one working adult, no dependents and separates essentials from lifestyle spending so readers can quickly see what is required, what is flexible, and what salary keeps the plan from becoming paycheck-to-paycheck.
Monthly household budgetBLS, HUD, ACS inputsLast verified May 2026
Complete Monthly Budget
| Category | Expense | Monthly Cost |
|---|---|---|
| Essential | Rent (1BR apartment) | $892 |
| Essential | Groceries & household supplies | $366 |
| Essential | Utilities (electric, gas, water) | $212 |
| Essential | Transportation (gas, transit, maintenance) | $258 |
| Essential | Car insurance | $175 |
| Essential | Health insurance (individual) | $546 |
| Lifestyle | Internet & streaming | $59 |
| Lifestyle | Phone plan (1 line) | $85 |
| Lifestyle | Dining out & takeout | $195 |
| Lifestyle | Entertainment & recreation | $117 |
| Essentials Subtotal | $2,449 | |
| Lifestyle Subtotal | $456 | |
| Total Monthly Budget | $2,905 |
What Drives This Budget?
Housing share
31%
1BR apartment rent is the largest budget line at $892/mo.
Essential spend
84%
$2,449/mo covers housing, food, utilities, transport, insurance.
Lifestyle spend
16%
$456/mo is reserved for internet, phone, dining, entertainment, and recreation.
Savings buffer
$726
The salary target includes this monthly cushion instead of only breaking even.
Salary Needed: To live in Decatur as a one working adult, no dependents with a 20% savings margin, you need approximately $58,096/year before taxes, assuming a 25% tax reserve.Check affordability
Budget Planning Checklist
- Use $2,905/mo as the baseline spending plan before debt payments, tuition, or unusual medical costs.
- Keep rent near $892/mo if you want the $58,096/yr salary target to stay realistic.
- Run the affordability page for Decatur if your actual salary is materially below $58,096/yr.