๐Ÿ”ฌ Provenance & Standards

Data Methodology & Sources

CityClick operates under a strict sourcing policy: a blank is better than a wrong number. Every metric rendered on our platform is tied to an official federal, state, or municipal database with verified vintage.

๐Ÿ“Š Demographics, Income & Labor Force

US Census Bureau โ€” American Community Survey (ACS 5-Year)
Source Vintage: 2019โ€“2023 ACS Public Release ยท Geographic Level: Census Incorporated Place / County FIPS

Total resident population, 5-year growth trajectory, median household income (MHI), per capita income, and daytime commuter labor inflow ratios are compiled directly from official Census ACS tables.

Federal Reserve Bank of St. Louis (FRED API): County-level monthly unemployment rates (`LAUCN` series) and civilian labor force benchmarks updated directly from Bureau of Labor Statistics (BLS) releases.

๐Ÿ’ผ 25-Trade NAICS Saturation Index

US Census Bureau โ€” ZIP Codes Business Patterns (ZBP)
Mathematical Model: Empirical Bayes Shrinkage Prior (m = 10,000 national baseline)

To prevent statistical distortion in smaller communities while accurately measuring saturation in major metros, establishment density per 10,000 residents is smoothed using Empirical Bayes shrinkage against national trade priors across 25 primary NAICS retail and service categories.

Commercial lease rates ($/sqft/year) reflect asking triple-net (NNN) commercial retail benchmarks reconciled against regional brokerage reports and county appraisal district commercial records.

๐Ÿ”๏ธ Terrain Elevation & Climate Normals

USGS 3D Elevation Program (3DEP Point Query Service)
Spatial Accuracy: 1/3-arc-second (~10-meter) Digital Elevation Models (DEM)

Precise municipal elevation above sea level is resolved using exact municipal centroid coordinates queried against the National Elevation Dataset (NED).

Open-Meteo Meteorological Normals: 30-year climate baselines resolving annual sunny days, peak summer temperatures, winter low envelopes, and annual precipitation.

๐Ÿšฐ Municipal Drinking Water & Public Safety

EPA Safe Drinking Water Information System (SDWIS Envirofacts)
Public Water System Identification (PWSID) Tracking

Every municipal profile references the primary active Public Water System ID (e.g. `TX2270001` for Austin Water, `AR0000208` for Hot Springs Village), primary source classification (groundwater aquifer vs surface water reservoir), and Safe Drinking Water Act compliance status.

Public Audit & Corrections Policy

If you are a municipal official, civil engineer, or local business owner and notice a changed permit fee, new utility district, or adjusted school boundary, submit verification evidence to our research desk at [email protected]. Verified corrections update within 48 hours.