Files
republic-os/data/jurisdictions/us/states/va/counties/norfolk-city/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 Norfolk city, VA county 51710 VA
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
233596 55904 99700 77992 66109 16.5 46.33 5.7 289900 0.4736 8.27 100966 92432 8544 1544 23691 72093
to rel area_weight
us/states/va/districts/03 in-district 0.6387
to rel area_weight
us/states/va/districts/02 in-district 0.0051
to rel area_weight
us/states/va/districts/senate/21 in-district 0.5692
to rel area_weight
us/states/va/districts/senate/20 in-district 0.0507
to rel area_weight
us/states/va/districts/house/94 in-district 0.2222
to rel area_weight
us/states/va/districts/house/93 in-district 0.2187
to rel area_weight
us/states/va/districts/house/92 in-district 0.1351
to rel area_weight
us/states/va/districts/house/95 in-district 0.044
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
va
2026-07-03

Norfolk city, VA

County jurisdiction.

Demographics (ACS 2023)

Measure Value
Population 233596
Under 18 55904
1864 99700
65+ 77992
Median household income 66109
Poverty rate 16.5
Homeownership rate 46.33
Unemployment rate 5.7
Median home value 289900
Gini index 0.4736
Vacancy rate 8.27
White 100966
Black 92432
Asian 8544
Native 1544
Hispanic/Latino 23691
Bachelor's or higher 72093

Districts

Source

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