Methodology
Texas governing definitions, direct ZIP/ZCTA evidence, legislative geography, and supplemental workforce context are kept separate.
How to Read the Rankings
Ranks are ranks by numeric value, not best-to-worst judgments. A high value can mean different things in different columns.
Childcare Desert Formula
The Texas/TWC-compatible measure divides children under age six with working parents by current qualifying regulated childcare capacity. A ratio of at least 3.0 is a desert; positive demand with zero qualifying capacity is also a desert.
Who the Formula Does Not Count
This companion measure is total children under six minus children under six with working parents. It is not a claim that every child outside the denominator requires licensed childcare.
HHSC Nighttime-Care Standard
The governing Texas nighttime-care window is 9:00 p.m.-6:00 a.m. Capacity at a schedule-overlap operation is not the same as nighttime seat availability.
ACS B08302 Early-Shift Workforce
ACS B08302 describes when workers leave home to go to work. The before-6-a.m. measure is supplemental workforce-time context and does not identify childcare use.
LODES Workforce Geography
LODES describes worker residence and workplace geography. It does not identify childcare stops, actual travel routes, or commute duration.
ZIP-to-Legislative-District Crosswalk
The site uses the governed 2025 ZIP-to-SLDL and ZIP-to-SLDU crosswalks used by the Texas legislative intelligence architecture. Texas is explicitly scoped before aggregation and split ZIPs are preserved.
Duplicate ZIP×district relationships are governed with MAX(area_ratio), never SUM(area_ratio).
District Area-Ratio Allocation
For additive quantities such as children, qualifying capacity, operations, and worker counts, the ZIP value is multiplied by area_ratio — the share of that ZIP's geographic area inside the district — and the allocated values are summed. District ratios are then recomputed from those allocated components.
What the District Numbers Mean
House/Senate district ratio = legislative context estimate.
The district method is geographic allocation, not Census-block assignment, child-level assignment, household-level assignment, population-weighted allocation, or a statistical confidence interval.
Downloadable Evidence
Each district page provides its ZIP contribution crosswalk, and the Downloads area retains the ZIP, House, Senate, methodology, CSV, Markdown and text evidence products.
House Crosswalk Duplicate Governance
The 2025 Texas House ZIP crosswalk source contained duplicate ZIP×district rows. Before any House district allocation, the publication now reduces each ZIP×district relationship to a single governed record using MAX(area_ratio), never SUM(area_ratio). The correction prevents duplicated additive district estimates while preserving split ZIP relationships.