Files
republic-os/data/jurisdictions/us/states/sc/counties/dorchester/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

3.6 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 Dorchester County, SC county 45035 SC
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
167201 40253 101541 25407 78198 11.38 75.53 4.94 329300 0.42 6.9 103549 42160 3531 429 12058 47029
to rel area_weight
us/states/sc/districts/06 in-district 0.8128
to rel area_weight
us/states/sc/districts/01 in-district 0.1872
to rel area_weight
us/states/sc/districts/senate/39 in-district 0.5372
to rel area_weight
us/states/sc/districts/senate/41 in-district 0.33
to rel area_weight
us/states/sc/districts/senate/38 in-district 0.1279
to rel area_weight
us/states/sc/districts/house/97 in-district 0.3398
to rel area_weight
us/states/sc/districts/house/102 in-district 0.1675
to rel area_weight
us/states/sc/districts/house/95 in-district 0.1609
to rel area_weight
us/states/sc/districts/house/90 in-district 0.1408
to rel area_weight
us/states/sc/districts/house/114 in-district 0.1313
to rel area_weight
us/states/sc/districts/house/94 in-district 0.0264
to rel area_weight
us/states/sc/districts/house/98 in-district 0.0234
to rel area_weight
us/states/sc/districts/house/109 in-district 0.0097
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
sc
2026-07-03

Dorchester County, SC

County jurisdiction — 1 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 167201
Under 18 40253
1864 101541
65+ 25407
Median household income 78198
Poverty rate 11.38
Homeownership rate 75.53
Unemployment rate 4.94
Median home value 329300
Gini index 0.42
Vacancy rate 6.9
White 103549
Black 42160
Asian 3531
Native 429
Hispanic/Latino 12058
Bachelor's or higher 47029

Districts

Source

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