Files
republic-os/data/jurisdictions/us/states/nj/counties/mercer/index.md
T
Fabio 199d8b37d3 Municipals: nest 1,823 city officeholders under their real counties
Pull Atlas's place→county crosswalk (Census TIGER 2024 places × county
geometries, 32,041 places) into the build as a committed raw input, and
use it to resolve municipal officeholders whose county was unknown.

- data/place_county_crosswalk.jsonl — new raw input (place_geoid → county_geoid)
- build.py — place-name+state → county_geoid → ACS county slug as a fallback
  in county_slug(); city_slug() generalized to non-FL bare place labels
- data/sources/sources.yaml — provenance entry for the crosswalk

_unresolved municipals: 1919 → 58. The remainder are genuine: CT planning
regions (post-county), county-level rows mislabeled municipal upstream,
consolidated city-counties (null label), Wikidata-QID placeholder names,
and ambiguous same-name places — left unresolved rather than guessed.

Join key is county_geoid (5-digit FIPS); the directory slug is taken from
the ACS county node so municipals nest under the exact existing county dir.
Deterministic (byte-identical rebuild); validate.py passes 19,721 records.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-04 20:23:57 -04:00

1.2 KiB
Raw Blame History

type, title, classification, fips, state, demographics, sources, confidence, tags, timestamp
type title classification fips state demographics sources confidence tags timestamp
Jurisdiction Mercer County, NJ county 34021 NJ
population population_under_18 population_18_64 population_65_plus median_household_income poverty_rate homeownership_rate unemployment_rate median_home_value gini_index vacancy_rate race_white race_black race_asian race_native hispanic bachelors_plus
385864 84828 239479 61557 100645 10.27 62.15 6.31 377700 0.4926 4.65 178342 71211 48018 5214 89099 174244
field source
demographics Census ACS 2023
official
jurisdiction
county
nj
2026-07-03

Mercer County, NJ

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 385864
Under 18 84828
1864 239479
65+ 61557
Median household income 100645
Poverty rate 10.27
Homeownership rate 62.15
Unemployment rate 6.31
Median home value 377700
Gini index 0.4926
Vacancy rate 4.65
White 178342
Black 71211
Asian 48018
Native 5214
Hispanic/Latino 89099
Bachelor's or higher 174244

Source

  • demographics: Census ACS 2023