Files
republic-os/data/jurisdictions/us/states/nc/counties/new-hanover/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 New Hanover County, NC county 37129 NC
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
235229 42122 148297 44810 75166 12.29 61.4 4.49 387800 0.4816 12.66 180170 25672 3250 405 18547 100756
to rel area_weight
us/states/nc/districts/07 in-district 0.6638
to rel area_weight
us/states/nc/districts/senate/7 in-district 0.6363
to rel area_weight
us/states/nc/districts/senate/8 in-district 0.0306
to rel area_weight
us/states/nc/districts/house/20 in-district 0.4082
to rel area_weight
us/states/nc/districts/house/19 in-district 0.1371
to rel area_weight
us/states/nc/districts/house/18 in-district 0.1215
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
nc
2026-07-03

New Hanover County, NC

County jurisdiction — 4 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 235229
Under 18 42122
1864 148297
65+ 44810
Median household income 75166
Poverty rate 12.29
Homeownership rate 61.4
Unemployment rate 4.49
Median home value 387800
Gini index 0.4816
Vacancy rate 12.66
White 180170
Black 25672
Asian 3250
Native 405
Hispanic/Latino 18547
Bachelor's or higher 100756

Districts

Source

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