Files
republic-os/data/jurisdictions/us/states/fl/counties/volusia/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 Volusia County, FL county 12127 FL
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
579622 100824 331664 147134 70044 11.76 73.71 4.13 313000 0.4491 14.26 410175 61378 11546 1529 94499 165802
to rel area_weight
us/states/fl/districts/06 in-district 0.4689
to rel area_weight
us/states/fl/districts/07 in-district 0.4146
to rel area_weight
us/states/fl/districts/senate/8 in-district 0.6965
to rel area_weight
us/states/fl/districts/senate/7 in-district 0.1872
to rel area_weight
us/states/fl/districts/house/30 in-district 0.2556
to rel area_weight
us/states/fl/districts/house/27 in-district 0.2473
to rel area_weight
us/states/fl/districts/house/29 in-district 0.2173
to rel area_weight
us/states/fl/districts/house/28 in-district 0.1636
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
fl
2026-07-03

Volusia County, FL

County jurisdiction — 100 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 579622
Under 18 100824
1864 331664
65+ 147134
Median household income 70044
Poverty rate 11.76
Homeownership rate 73.71
Unemployment rate 4.13
Median home value 313000
Gini index 0.4491
Vacancy rate 14.26
White 410175
Black 61378
Asian 11546
Native 1529
Hispanic/Latino 94499
Bachelor's or higher 165802

Districts

Source

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