Files
republic-os/data/jurisdictions/us/states/md/counties/wicomico/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

2.7 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 Wicomico County, MD county 24045 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
104914 23644 63822 17448 76210 13.94 62.28 5.89 254700 0.4468 8.29 62073 27997 2574 120 7463 27377
to rel area_weight
us/states/md/districts/01 in-district 0.9656
to rel area_weight
us/states/md/districts/senate/37 in-district 0.5346
to rel area_weight
us/states/md/districts/senate/38 in-district 0.4262
to rel area_weight
us/states/md/districts/house/37b in-district 0.3907
to rel area_weight
us/states/md/districts/house/38c in-district 0.2903
to rel area_weight
us/states/md/districts/house/37a in-district 0.1438
to rel area_weight
us/states/md/districts/house/38b in-district 0.0748
to rel area_weight
us/states/md/districts/house/38a in-district 0.0611
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
md
2026-07-03

Wicomico County, MD

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 104914
Under 18 23644
1864 63822
65+ 17448
Median household income 76210
Poverty rate 13.94
Homeownership rate 62.28
Unemployment rate 5.89
Median home value 254700
Gini index 0.4468
Vacancy rate 8.29
White 62073
Black 27997
Asian 2574
Native 120
Hispanic/Latino 7463
Bachelor's or higher 27377

Districts

Source

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