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Crunching costs, sorting signals, rendering insights.
Crunching costs, sorting signals, rendering insights.
The 30% rule — spending no more than 30% of gross income on housing — is the most widely cited benchmark for affordability. On a $40K salary, 0 cities (0%) meet this threshold. That's a tough market. We ran the numbers on 2 cities in Kentucky using 2026 census, rent, and salary data. Louisville come…
The 30% rule — spending no more than 30% of gross income on housing — is the most widely cited benchmark for affordability. On a $40K salary, 0 cities (0%) meet this threshold. That's a tough market. We ran the numbers on 2 cities in Kentucky using 2026 census, rent, and salary data. Louisville comes out on top — here's the full ranking and analysis.
Louisville earns its position at #1 through a combination that's hard to replicate. The 94 cost index sits 18 points below the national baseline, and the $64,731 median income means purchasing power here is amplified by the low cost base. Homes list at $259,139 — $208,231 below the national median — a genuine ownership opportunity. On the cost side, Housing leads the way at 84, while Healthcare trails at 96.
Stepping back, Here's the state-level backdrop: Kentucky averages a 96 cost index, $1,420/mo rent, and $66,181 income across 2 cities. That's $475 less than the national rent average. Appalachian value and bourbon country charm — and that context shapes every city in this ranking.
What to do with this data: use the ranking as a shortlist, then dig into the city profiles for trend lines and category breakdowns. The difference between #1 and #5 is often smaller than the difference between "good on paper" and "actually fits my life." Compare your top picks with our calculator to see real take-home numbers.
#1 Ranked: Louisville — cost index 94, rent $1,352/mo, income $64,731
0 of 2 cities keep rent under 30% of $40K
0 of 2 cities keep rent under 30% of $40K gross income
Data sourced from Census Bureau, Zillow, BLS, and Tax Foundation — current as of 2026
| Rank | City | Median Rent | Rent % of Gross | Cost Index | |
|---|---|---|---|---|---|
| 1 | Louisville | $1,352 | 41% | 94 | Details |
| 2 | Lexington | $1,487 | 45% | 98 | Details |
622,981 residents · Kentucky
Real talk: Why Louisville ranks #1: the numbers tell a clear story. At 94 on the cost index, residents save roughly 18% less than the typical American. Rent sits at $1,352/month — which, honestly, is lower than you'd expect here — while the median household pulls in $64,731/year. The Housing category is particularly strong at 84, though Healthcare (96) lags behind. Home prices average $259,139 — $208,231 below the national median.
320,154 residents · Kentucky
Lexington earns its position at #2 through a combination that's hard to replicate. The 98 cost index sits 14 points below the national baseline, and the $67,631 median income means purchasing power here is amplified by the low cost base. Homes list at $322,743 — $144,627 below the national median — a genuine ownership opportunity. On the cost side, Utilities leads the way at 91, while Healthcare trails at 102.
| City | State Tax | Sales Tax | Property Tax | Est. Take-Home |
|---|---|---|---|---|
1Louisville | 4% | 6% | 0.78% | $30,772 |
2Lexington | 4% | 6% | 0.78% | $30,772 |
Louisville ranks #1 in Kentucky for this analysis with a cost index of 94 and median income of $64,731.
Yes. On a $40K salary in Louisville, rent would consume about 41% of your gross monthly income. Financial experts recommend keeping rent under 30%. It's tight — consider a roommate or nearby suburb.
Our cost of living index uses real Zillow rent data as the foundation, indexed to 100 (national median). Sub-categories (housing, food, transport, utilities, healthcare) are derived from the overall index with regional adjustments. Data is updated monthly.
Louisville (ranked #1) has a cost index of 94 and rent of $1,352/mo, while Lexington (ranked #2) has a cost index of 98 and rent of $1,487/mo — a 4-point difference in cost of living.
City data is refreshed monthly from Census Bureau population estimates, Zillow rent and home price indices, BLS salary data, and Tax Foundation tax rates. Last updated: 2026.
The median 1-bedroom rent in Louisville is $1,352/month as of 2026, based on Zillow's Observed Rent Index. This is $543 below the national median of $1,895/month.
After federal taxes, FICA (7.65%), and 4% state income tax, estimated take-home on $40K in Louisville is approximately $30,772/year ($2,564/month). After median rent of $1,352/month, you'd have roughly $14,548/year for all other expenses.
The median home price in Louisville is $259,139, which is 4.0× the local median income. It's on the edge of affordability for median-income households. The national median home price is $467,370.
Kentucky has a 4% state income tax rate. Combined state and local sales tax averages 6%, and the effective property tax rate is 0.78%.
This ranking was generated using data current as of early 2026. Population and income data comes from the Census Bureau's American Community Survey (5-year estimates). Rent and home price data is from Zillow's monthly releases. Tax rates are from the Tax Foundation's 2025 edition. Rankings are refreshed monthly.