Files
republic-os/data/jurisdictions/us/states/wv/counties/mercer/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

2.4 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 Mercer County, WV county 54055 WV
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
58563 12204 32966 13393 53210 16.49 72.87 2.65 121700 0.4513 17.45 52059 2372 127 245 789 12898
to rel area_weight
us/states/wv/districts/01 in-district 0.9997
to rel area_weight
us/states/wv/districts/senate/6 in-district 0.9995
to rel area_weight
us/states/wv/districts/house/39 in-district 0.4292
to rel area_weight
us/states/wv/districts/house/41 in-district 0.2466
to rel area_weight
us/states/wv/districts/house/37 in-district 0.2246
to rel area_weight
us/states/wv/districts/house/38 in-district 0.0991
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
wv
2026-07-03

Mercer County, WV

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 58563
Under 18 12204
1864 32966
65+ 13393
Median household income 53210
Poverty rate 16.49
Homeownership rate 72.87
Unemployment rate 2.65
Median home value 121700
Gini index 0.4513
Vacancy rate 17.45
White 52059
Black 2372
Asian 127
Native 245
Hispanic/Latino 789
Bachelor's or higher 12898

Districts

Source

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