NOAA station record: LITTLE ROCK AP ADAMS FLD, AR US (USW00013963); 34.7272, -92.2389; elevation 78.6 m. Station-to-routing-point distance: 4.576 km. Nearest station, by Haversine distance to project routing point, among NOAA 1991-2020 monthly-normal station files with complete HDD65 and CDD65 for months 01-12; tie-break by station ID.
HDD65 and CDD65 are annual sums of 12 monthly base-65°F values from the 1991-2020 normals. They describe the station point, not a market average.
Accepted Census geography: Little Rock city, Arkansas; incorporated place; GEOID 1600000US0541000; ACS 2024 5-year (2020-2024).
- utility gas: 44,263 occupied units (published MOE 1,631); derived share 50.4% of 87,858 occupied housing units.
- electricity: 41,977 occupied units (published MOE 1,859); derived share 47.8% of 87,858 occupied housing units.
- B25034 pre-1980 housing units: 52,557 of 99,643; derived share 52.7%. Approximate aggregate MOE: 1,942, calculated as root-sum-square of source-category MOEs.
- B25024 one-unit detached: 59,776 housing units (published category MOE 1,456) of 99,643; derived share 60.0%.
ACS percentages are derived point estimates. No ratio MOE is calculated for the derived shares; the published category estimate/MOE and denominator are shown above.
B25034’s aggregate MOE is an approximation from component MOEs, not a separately published table value.