About this data
This table ranks census tracts in cities (pop. ≥ 50K) east of the
Mississippi as potential 15-minute neighborhoods. Each index is a
percentile rank (0–1): a value of 0.85 means the tract scores
higher than 85% of all tracts. Column headers are abbreviated; hover
for the full field name. Columns marked ⊕ feed into the combined score.
weather (city) is uniform across all tracts in a city; all other indices vary by tract.
- combined
- Weighted average of five ⊕ sub-indices (equal weight by default).
- ⊕ vibe
- Percentile rank of culture density + veg restaurant count + bike repair shop count. Each item strongly boosts the score.
- culture
- Sub-component of vibe. Density of cafes, pubs, bars, bookshops, bakeries, museums, universities, libraries, theatres, cinemas, and community centres. Source: OpenStreetMap via Geofabrik.
- vegetarian
- Number of vegetarian and vegan restaurants in the tract. Source: OpenStreetMap via Overpass API.
- bike_repair
- Number of bicycle repair shops in the tract (
shop=bicycle or amenity=bicycle_repair). Source: OpenStreetMap via Overpass API.
- ⊕ affordability
- Percentile rank of housing cost (lower cost = higher rank). Blends median gross rent and median home value. Source: ACS 5-Year Estimates (2022).
- ⊕ weather_city
- Percentile rank of
nice_days − hot_muggy − frigid_days: rewards mild weather, penalises hot humid summers and frigid winters (city-level). Source: NOAA 1991–2020 Hourly Weather Normals.
- ⊕ safety
- Percentile rank of safety: 50% violent crime rate (city/agency level, state-median fallback) + 50% incarceration rate (tract-level). Sources: Kaplan UCR 2020 (Jacob Kaplan’s Concatenated UCR Files, ICPSR 100707); Opportunity Atlas (Opportunity Insights).
- ⊕ mobility
- Composite of walkability (30%), transit (30%), and bikeability (40%). Source: OpenStreetMap via Geofabrik.
- walkability
- Sub-component of mobility. Density of footways, pedestrian zones, steps, and crossings.
- bikeability
- Sub-component of mobility. Density of cycleways and bicycle parking.
- transit
- Sub-component of mobility. Density of bus stops, bus stations, and railway stations.
- pop_45min
- Working-age population reachable within a 45-minute transit commute (walk + GTFS schedules, time-decay weighted), averaged across block groups in the tract. Source: EPA Smart Location Database V3.
- 0_cars_%
- Percentage of zero-vehicle households, averaged across block groups. Higher = more car-free viable. Source: EPA Smart Location Database V3.
- rent / home_val
- Median gross rent and median home value. Source: ACS 5-Year Estimates (2022).
- nice_days
- Days per year with daily high between 60–85 °F.
- hot_muggy
- Days per year with normal daily high above 85 °F and peak dew point at or above 65 °F (thresholds adjusted for 30-year averaged normals).
- frigid_days
- Days per year with normal daily low at or below 20 °F.
- jul_high / jan_low
- Average July 3 PM and January 6 AM temperatures (°F). Cities with July high > 93.0 °F are excluded.
- crime/100K city
- Violent crimes per 100,000 residents (city-level).
- incarceration_rate
- Fraction of children from low-income families (25th percentile) who grew up in this tract and were incarcerated on April 1, 2010 (2010 Census), pooled across men and women (tract-level). Lower = safer. Source: Opportunity Atlas, Opportunity Insights (opportunityinsights.org).
- neighborhood
- Nearest neighborhood name; click 🗺 to open Google Maps centered on the tract. Source: Google Maps Geocoding API.
Excluded data
- Cities with pop. < 50,000 are not included.
- Cities with mean July high > 93.0 °F are excluded for excessive heat.
- Census sentinel values are treated as missing:
-666666666 (data not available),
top-coded values (3501 for rent, 2000001 for home value — exceeds reporting cap),
and bottom-coded values (99 for rent, 9999 for home value — below reporting floor).
Tracts missing rent or home value after this cleaning are dropped.
- Zero-amenity tracts — tracts with no OSM features in any culture, veg, walkability, bikeability, or transit category — are dropped.