Files
republic-os/data/jurisdictions/us/states/ma/counties/hampden/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 Hampden County, MA county 25013 MA
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
462815 96761 281531 84523 71306 16.34 62.22 6.01 298800 0.4704 6.64 295267 40334 12007 1292 125188 132778
field source
demographics Census ACS 2023
official
jurisdiction
county
ma
2026-07-03

Hampden County, MA

County jurisdiction — 2 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 462815
Under 18 96761
1864 281531
65+ 84523
Median household income 71306
Poverty rate 16.34
Homeownership rate 62.22
Unemployment rate 6.01
Median home value 298800
Gini index 0.4704
Vacancy rate 6.64
White 295267
Black 40334
Asian 12007
Native 1292
Hispanic/Latino 125188
Bachelor's or higher 132778

Source

  • demographics: Census ACS 2023