Pilot coverage diagnostics
Monmouth County, NJ
2 WWK directory location(s) assigned through dominant-land-area ZCTA mapping; 0 WWK pool-list venue(s).
- British Swim School at LA Fitness Howell
- Goldfish Swim School - Middletown
The current WWK snapshot contains two geocoded lesson locations and no pool-list venue assigned to this county. This is evidence of incomplete WWK coverage, not evidence that Monmouth County has only two lesson providers or no public pools.
Ocean County, NJ
2 WWK directory location(s) assigned through dominant-land-area ZCTA mapping; 0 WWK pool-list venue(s).
- British Swim School at LA Fitness Brick
- British Swim School at LA Fitness Toms River
The current WWK snapshot contains two geocoded lesson locations and no pool-list venue assigned to this county. Both observed schools share ownership with WWK, so this snapshot is materially incomplete and cannot support an access ranking.
Philadelphia County, PA
1 WWK directory location(s) assigned through dominant-land-area ZCTA mapping; 0 WWK pool-list venue(s).
- British Swim School at LA Fitness Cheltenham
The current WWK snapshot contains one geocoded lesson location and no pool-list venue assigned to this county. The observed school shares ownership with WWK, so this snapshot is materially incomplete and cannot support an access ranking.
Why no access score appears
A defensible access measure needs verified year-round providers, actual travel time, prices, scholarships, and a documented completeness audit. These gates have not passed:
- Not passed: all providers geocoded
- Not passed: provider inventory sample audited
- Not passed: year round access verified
- Not passed: drive time matrix built
- Not passed: price coverage sufficient
- Not passed: scholarship coverage sufficient
- Not passed: small number suppression implemented
No county page is generated until its minimum data threshold passes. Drowning-rate fields will also follow CDC small-number suppression rules before publication.
Methods and sources
- 2024 ACS 5-Year Table B09001, field B09001_E001 for population under 18. The source file hash is recorded in the dataset.
- 2020 Census ZCTA-to-County relationship file. Each ZCTA is assigned to the county containing its largest land-area share; a ZCTA is only a ZIP approximation.
- The WWK school directory and Find a Pool list are starting datasets, not provider censuses. Duplicate street address plus ZIP is counted once.
Ownership and sampling bias
WaterWiseKids and British Swim School businesses serving the Jersey Shore and Northwest Philadelphia share common ownership. That relationship is especially material in this pilot because several observed listings are affiliated schools. See the full ownership disclosure. Affiliated locations receive no score or preferential treatment; no score is published at all in this pilot.
Download the pilot JSON under CC BY 4.0. Last verified 2026-11-11; review due 2027-02-09.
