Files
republic-os/data/jurisdictions/us/states/in/counties/montgomery/index.md
T
Fabio 1beeaab2db Graph: national county↔district↔legislator authority layer
The first edges in the repo. Every US county now links to the districts it
sits in, weighted by area overlap, and every legislator links to the district
they represent — county → district → representative, traversable.

Data (PostGIS, no Atlas dependency — computed directly from geometry):
- data/county_district_edges.jsonl — 16,328 weighted edges. area_weight =
  ST_Area(ST_Intersection(county, district))/ST_Area(county) over ST_MakeValid
  Census TIGER 2024 geometries, overlaps <0.5% dropped. Uses area-intersection,
  NOT centroid-in-polygon, so urban districts that carve through counties
  (e.g. GA CD-5 / Atlanta across Clayton+DeKalb+Fulton) are captured, not
  silently dropped. Per-county weights sum to ~1.0 per district type.

build.py:
- ~6,896 new district nodes: 435 CD (ACS demographics where available; sparse
  for the 8 states missing from acs_cd) + 4,927 state-house + 1,897 state-senate
  (geometry-only). GEOID/number-keyed, stable.
- county index.md gains a `districts:` block (frontmatter) + a ## Districts
  section (body links, so link-integrity checks them).
- legislators + US House members gain `represents:` pointing at their district
  node; edge stored once on the person, inverse left to the view.
- schemas/jurisdiction: classification enum + chamber/districts fields.

Honest gaps (logged, not hidden): ID + NH have no state-house geometry, so
their house districts get nodes (represents resolves) but no county edges;
CD nodes for acs_cd-missing states are demographically sparse.

Deterministic (byte-identical rebuild); validate.py passes 26,617 records,
link-integrity clean (every district/represents link resolves).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-04 22:28:08 -04:00

2.5 KiB
Raw Blame History

type, title, classification, fips, state, demographics, districts, sources, confidence, tags, timestamp
type title classification fips state demographics districts sources confidence tags timestamp
Jurisdiction Montgomery County, IN county 18107 IN
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
38312 8809 22281 7222 71479 10.53 80.27 3.31 171800 0.418 5.93 34624 372 209 40 2367 7241
to rel area_weight
us/states/in/districts/04 in-district 0.9999
to rel area_weight
us/states/in/districts/senate/7 in-district 0.6517
to rel area_weight
us/states/in/districts/senate/23 in-district 0.3482
to rel area_weight
us/states/in/districts/house/44 in-district 0.6053
to rel area_weight
us/states/in/districts/house/28 in-district 0.2209
to rel area_weight
us/states/in/districts/house/13 in-district 0.1066
to rel area_weight
us/states/in/districts/house/41 in-district 0.0671
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
in
2026-07-03

Montgomery County, IN

County jurisdiction.

Demographics (ACS 2023)

Measure Value
Population 38312
Under 18 8809
1864 22281
65+ 7222
Median household income 71479
Poverty rate 10.53
Homeownership rate 80.27
Unemployment rate 3.31
Median home value 171800
Gini index 0.418
Vacancy rate 5.93
White 34624
Black 372
Asian 209
Native 40
Hispanic/Latino 2367
Bachelor's or higher 7241

Districts

Source

  • demographics: Census ACS 2023
  • districts: PostGIS area-intersection over Census TIGER 2024 boundaries