Think Bigger Today index

True Cost of Living Index

TCOLI compares a ZIP code's median household income with what it actually costs to live there: annual rent, the same rent adjusted for cumulative inflation, and the months of saving needed to build a three-month emergency fund at the national personal saving rate. Higher scores mean income goes further.

SqueezedComfortable
100.0
Excellent
Average TCOLI across scored ZIP codes

13,241 ZIP codes scored

Income to rent ratio

6.09×

Median income divided by annual rent, averaged across scored ZIP codes

Personal saving rate

2.7%

Share of disposable income households save nationally

ZIP codes scored

13,241

Every ZIP code tabulation area with at least 5,000 residents

Updated

2026-08-01

Recomputed monthly with the newest CPI and saving-rate prints

Best value

ZIP codes where income stretches furthest

Ranked by TCOLI score — median income relative to the local cost of renting.

  1. 1
    00606, PR4.15× rent100.0
  2. 2
    00638, PR4.45× rent100.0
  3. 3
    00656, PR4.33× rent100.0
  4. 4
    00670, PR4.64× rent100.0
  5. 5
    00703, PR4.45× rent100.0
  6. 6
    00771, PR4.07× rent100.0
  7. 7
    00778, PR5.22× rent100.0
  8. 8
    00791, PR4.33× rent100.0
  9. 9
    00911, PR4.51× rent100.0
  10. 10
    00918, PR5.50× rent100.0

Rent is the ACS median gross rent, annualised. Emergency-fund timing assumes saving at the national personal saving rate.

How TCOLI is built

For every ZIP code we annualise the median gross rent, divide the median household income by it, and rescale that ratio onto 0–100 between 1.5× (rent-burdened) and 4× (comfortable). We then restate the same rent in today's dollars using the CPI to show how much inflation has already eaten.

The emergency-fund column answers a practical question: saving at the national personal saving rate, how many months does it take a local median earner to bank three months of essential spending?

Source: U.S. Census Bureau, American Community Survey 5-year estimates (ZCTA median gross rent and median household income); U.S. Bureau of Labor Statistics Consumer Price Index via FRED; U.S. Bureau of Economic Analysis personal saving rate via FRED. Latest observation 2026-08-01.

Related: Mortgage Affordability Stress Index · Financial Stress Score