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republic-os/data/jurisdictions/us/states/ut/counties/salt-lake/index.md
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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

8.7 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 Salt Lake County, UT county 49035 UT
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
1196523 302331 752027 142165 97494 8.14 66.13 3.82 525700 0.429 5.21 841252 21947 51261 12690 246878 418009
to rel area_weight
us/states/ut/districts/02 in-district 0.3266
to rel area_weight
us/states/ut/districts/04 in-district 0.2738
to rel area_weight
us/states/ut/districts/03 in-district 0.2489
to rel area_weight
us/states/ut/districts/01 in-district 0.1506
to rel area_weight
us/states/ut/districts/senate/10 in-district 0.221
to rel area_weight
us/states/ut/districts/senate/11 in-district 0.1655
to rel area_weight
us/states/ut/districts/senate/15 in-district 0.1513
to rel area_weight
us/states/ut/districts/senate/9 in-district 0.126
to rel area_weight
us/states/ut/districts/senate/19 in-district 0.0806
to rel area_weight
us/states/ut/districts/senate/18 in-district 0.0627
to rel area_weight
us/states/ut/districts/senate/17 in-district 0.0424
to rel area_weight
us/states/ut/districts/senate/8 in-district 0.0353
to rel area_weight
us/states/ut/districts/senate/14 in-district 0.0325
to rel area_weight
us/states/ut/districts/senate/16 in-district 0.0289
to rel area_weight
us/states/ut/districts/senate/13 in-district 0.0279
to rel area_weight
us/states/ut/districts/senate/12 in-district 0.0198
to rel area_weight
us/states/ut/districts/senate/22 in-district 0.0059
to rel area_weight
us/states/ut/districts/house/27 in-district 0.1556
to rel area_weight
us/states/ut/districts/house/21 in-district 0.1493
to rel area_weight
us/states/ut/districts/house/41 in-district 0.1189
to rel area_weight
us/states/ut/districts/house/23 in-district 0.0997
to rel area_weight
us/states/ut/districts/house/49 in-district 0.0625
to rel area_weight
us/states/ut/districts/house/33 in-district 0.0561
to rel area_weight
us/states/ut/districts/house/22 in-district 0.0498
to rel area_weight
us/states/ut/districts/house/46 in-district 0.042
to rel area_weight
us/states/ut/districts/house/25 in-district 0.0309
to rel area_weight
us/states/ut/districts/house/26 in-district 0.0253
to rel area_weight
us/states/ut/districts/house/47 in-district 0.0211
to rel area_weight
us/states/ut/districts/house/42 in-district 0.0173
to rel area_weight
us/states/ut/districts/house/38 in-district 0.0163
to rel area_weight
us/states/ut/districts/house/48 in-district 0.016
to rel area_weight
us/states/ut/districts/house/45 in-district 0.0136
to rel area_weight
us/states/ut/districts/house/39 in-district 0.0131
to rel area_weight
us/states/ut/districts/house/43 in-district 0.0126
to rel area_weight
us/states/ut/districts/house/35 in-district 0.0125
to rel area_weight
us/states/ut/districts/house/32 in-district 0.0116
to rel area_weight
us/states/ut/districts/house/44 in-district 0.0111
to rel area_weight
us/states/ut/districts/house/34 in-district 0.0109
to rel area_weight
us/states/ut/districts/house/40 in-district 0.0102
to rel area_weight
us/states/ut/districts/house/36 in-district 0.0098
to rel area_weight
us/states/ut/districts/house/31 in-district 0.0093
to rel area_weight
us/states/ut/districts/house/24 in-district 0.0086
to rel area_weight
us/states/ut/districts/house/30 in-district 0.0081
to rel area_weight
us/states/ut/districts/house/37 in-district 0.0074
field source
demographics Census ACS 2023
field source
districts PostGIS area-intersection over Census TIGER 2024 boundaries
official
jurisdiction
county
ut
2026-07-03

Salt Lake County, UT

County jurisdiction — 11 officeholders mapped.

Demographics (ACS 2023)

Measure Value
Population 1196523
Under 18 302331
18–64 752027
65+ 142165
Median household income 97494
Poverty rate 8.14
Homeownership rate 66.13
Unemployment rate 3.82
Median home value 525700
Gini index 0.429
Vacancy rate 5.21
White 841252
Black 21947
Asian 51261
Native 12690
Hispanic/Latino 246878
Bachelor's or higher 418009

Districts

Source

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