Files
republic-os/data/jurisdictions/us/states/mi/counties/washtenaw/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 Washtenaw County, MI county 26161 MI
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
369822 67474 244106 58242 89180 14.17 61.62 4.59 374100 0.4871 5.78 253992 42421 34148 1007 21403 214008
field source
demographics Census ACS 2023
official
jurisdiction
county
mi
2026-07-03

Washtenaw County, MI

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 369822
Under 18 67474
1864 244106
65+ 58242
Median household income 89180
Poverty rate 14.17
Homeownership rate 61.62
Unemployment rate 4.59
Median home value 374100
Gini index 0.4871
Vacancy rate 5.78
White 253992
Black 42421
Asian 34148
Native 1007
Hispanic/Latino 21403
Bachelor's or higher 214008

Source

  • demographics: Census ACS 2023