Files
republic-os/data/jurisdictions/us/states/nj/counties/somerset/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

3.4 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 Somerset County, NJ county 34035 NJ
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
349846 74044 216265 59537 140374 5.37 74.3 4.74 552100 0.4598 2.12 180538 33390 68731 1478 61585 209292
to rel area_weight
us/states/nj/districts/07 in-district 0.5909
to rel area_weight
us/states/nj/districts/12 in-district 0.4087
to rel area_weight
us/states/nj/districts/senate/16 in-district 0.3578
to rel area_weight
us/states/nj/districts/senate/21 in-district 0.2562
to rel area_weight
us/states/nj/districts/senate/23 in-district 0.2208
to rel area_weight
us/states/nj/districts/senate/17 in-district 0.1559
to rel area_weight
us/states/nj/districts/senate/22 in-district 0.0093
to rel area_weight
us/states/nj/districts/house/16 in-district 0.3578
to rel area_weight
us/states/nj/districts/house/21 in-district 0.2562
to rel area_weight
us/states/nj/districts/house/23 in-district 0.2208
to rel area_weight
us/states/nj/districts/house/17 in-district 0.1559
to rel area_weight
us/states/nj/districts/house/22 in-district 0.0093
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
nj
2026-07-03

Somerset County, NJ

County jurisdiction.

Demographics (ACS 2023)

Measure Value
Population 349846
Under 18 74044
1864 216265
65+ 59537
Median household income 140374
Poverty rate 5.37
Homeownership rate 74.3
Unemployment rate 4.74
Median home value 552100
Gini index 0.4598
Vacancy rate 2.12
White 180538
Black 33390
Asian 68731
Native 1478
Hispanic/Latino 61585
Bachelor's or higher 209292

Districts

Source

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