LivabilityCalc
Find Your City

Methodology

Cost of Living Index

Our Cost of Living Index uses a weighted composite of local real estate market data, median rents, and non-housing price parities compared to the national baseline. Weightings emulate the Bureau of Labor Statistics (BLS) Consumer Expenditure Surveys (CEX) models.

Overall Index = (Housing × 0.35) + (Rent × 0.15) + (Goods × 0.20) + (Services × 0.20) + (Utilities × 0.10)

Data Origins & Baselines:

Housing Index (35%): Based on Zillow Home Value Index (ZHVI). Fallback to Census ACS.

Rent Index (15%): Based on Zillow Observed Rent Index (ZORI). Fallback to Census ACS.

Goods Index (20%): Based on BEA Metropolitan Area Regional Price Parities (MARPP) for goods/groceries.

Services Index (20%): Based on BEA MARPP for healthcare, transportation, and other services.

Utilities Index (10%): Based on BEA MARPP for local energy/water utility parities.

A composite score of 100 represents the national baseline used by this model. Below 100 indicates lower estimated local costs; above 100 indicates higher estimated local costs.

  • < 75 = Very Affordable (Exceptional Purchasing Power)
  • 75–89 = Affordable
  • 90–109 = Average (Near National Median)
  • 110–129 = Expensive
  • ≥ 130 = Very Expensive (Low Purchasing Power)

Mortgage Calculator

Our mortgage calculator uses the standard amortization formula:

M = P × [r(1+r)^n] / [(1+r)^n – 1]

Where:

P = Principal (home price - down payment)

r = Monthly interest rate (annual rate / 12)

n = Total payments (loan term in years × 12)

The total monthly payment adds: principal & interest, property tax (annual tax / 12), home insurance, PMI (if down payment < 20%), and HOA fees.

When accessed from a city page, the calculator is pre-filled with the local median home value and the state's effective property tax rate from the Tax Foundation.

Tax Context

LivabilityCalc uses state-level tax context to help explain place-side housing and relocation costs. It is not the primary income-tax or payroll decision engine; personal take-home pay, filing status, and offer-specific income decisions belong in salary.city.

Place Tax Context = Property Tax Rate + Sales Tax Context + State Income Tax Overview

  • Property Tax: State-level effective rates are used as a planning proxy, not parcel-, county-, school-district-, or special-assessment-level tax bills.
  • Sales Tax: State plus average local sales tax context is shown where available to explain place-level consumer-cost pressure.
  • Income Tax: State income tax is treated as context only. LivabilityCalc does not present city pages as personal payroll or offer-worth-it calculations.

Household Budget Context

LivabilityCalc uses local household income as a place-side benchmark for housing burden and home-price-to-income context. It is an input for feasibility, not a salary recommendation.

Rent Burden = Typical Monthly Rent × 12 / Local Median Household Income

Home Price to Income = Typical Home Value / Local Median Household Income

For equivalent salary, filing status, personal take-home pay, or offer analysis, use salary.city.

Data Freshness & Auditing

Our infrastructure employs a multi-tiered fallback architecture to prevent top-coding data distortions: Zillow ZHVI/ZORI (Monthly Series) serves as the primary real-estate tier, with Census ACS 5-Year Estimates acting as a low-population fail-safe. Non-housing pricing relies exclusively on 2023–2024 BEA MARPP economic data. Mortgage rates reference the weekly FRED 30-Year PMMS Average.

Last multi-database sync: March 2026

Limitations & Statistical Anomalies

  • Cities lacking Zillow coverage AND with a Census Median Home Value >$2,000,001 are designated as `acs_capped`. Due to Census top-coding constraints, these figures represent structural floors rather than exact medians.
  • Cities outside recognized Metropolitan Statistical Areas (MSAs) default to robust BEA State-level Nonmetropolitan baseline indices for non-housing parities.
  • Property taxation matrices compute using state-level effective rates via the Tax Foundation. Specific intra-county taxing districts or special assessment allocations are excluded.
  • All predictive cost analyses function as systemic estimates. For individual financial transitions, consult a Certified Financial Planner (CFP).