Files
republic-os/data/jurisdictions/us/states/md/counties/frederick/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 Frederick County, MD county 24021 MD
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
287048 66996 176170 43882 122002 6.0 77.02 3.31 464600 0.3983 3.94 193768 30128 17011 938 36962 130282
field source
demographics Census ACS 2023
official
jurisdiction
county
md
2026-07-03

Frederick County, MD

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 287048
Under 18 66996
1864 176170
65+ 43882
Median household income 122002
Poverty rate 6.0
Homeownership rate 77.02
Unemployment rate 3.31
Median home value 464600
Gini index 0.3983
Vacancy rate 3.94
White 193768
Black 30128
Asian 17011
Native 938
Hispanic/Latino 36962
Bachelor's or higher 130282

Source

  • demographics: Census ACS 2023