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

3.2 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 Colleton County, SC county 45029 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
38783 8792 22062 7929 51114 19.58 73.29 9.87 162500 0.465 18.3 22225 13094 172 126 1767 6303
to rel area_weight
us/states/sc/districts/06 in-district 0.7718
to rel area_weight
us/states/sc/districts/01 in-district 0.1776
to rel area_weight
us/states/sc/districts/senate/45 in-district 0.4433
to rel area_weight
us/states/sc/districts/senate/41 in-district 0.2136
to rel area_weight
us/states/sc/districts/senate/40 in-district 0.2009
to rel area_weight
us/states/sc/districts/senate/43 in-district 0.0916
to rel area_weight
us/states/sc/districts/house/121 in-district 0.3699
to rel area_weight
us/states/sc/districts/house/97 in-district 0.3105
to rel area_weight
us/states/sc/districts/house/122 in-district 0.1432
to rel area_weight
us/states/sc/districts/house/90 in-district 0.1199
to rel area_weight
us/states/sc/districts/house/116 in-district 0.006
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
sc
2026-07-03

Colleton County, SC

County jurisdiction.

Demographics (ACS 2023)

Measure Value
Population 38783
Under 18 8792
1864 22062
65+ 7929
Median household income 51114
Poverty rate 19.58
Homeownership rate 73.29
Unemployment rate 9.87
Median home value 162500
Gini index 0.465
Vacancy rate 18.3
White 22225
Black 13094
Asian 172
Native 126
Hispanic/Latino 1767
Bachelor's or higher 6303

Districts

Source

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