I've been building side projects that leverage public data, and I've compiled a list of the best free tools I use regularly.
ZipPeek
ZIP code demographics, income, and IRS migration flow data.
Check it out: zippeek.com
DegreeWize
College tuition, acceptance rates, and earnings-to-debt outcome data.
Check it out: degreewize.com
SalaryByCity
US salary data for 800+ occupations across 400+ cities.
Check it out: salarybycity.com
CostByCity
Cost of living comparison across US metro areas (BEA RPP).
Check it out: costbycity.com
CalcPeek
Free online calculators and unit converters.
Check it out: calcpeek.com
Related Free Tools
- NetPayPeek — Take-home pay calculator for 78 cities in 37 countries
- EvictionLawPeek — Eviction laws, notice periods, and tenant rights by state
- TaxDeductionPeek — Average itemized tax deductions by state and income bracket (IRS SOI data)
- CertifyWize — 831 US occupations with salaries, education paths, and certifications
More from the DataPeek Network
- CareFindPeek — Find caregivers and care services with CMS F-Tag decoder
- LawyerCostPeek — Attorney fees and BLS OES wage tiers by state and legal specialty
- ElderCarePeek — Senior care costs and Medicaid spend-down rules across 200+ US cities
- LicenseWize — Professional license requirements and Compact Stack by state
All data tools are free and use public US government data. No signup required. Full directory: datapeekfacts.com.
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