For the most reliable, up-to-date data on walkability and amenities in Las Vegas, you should not rely on a single source due to the city's unique geography (sprawl vs. pockets of density).

Instead, use this tiered approach, which separates "theoretical" walkability from the actual pedestrian experience.

1. The Best "Hard Data" Resource: Walk Score & Heat Maps

While widely used, Walk Score is the most reliable baseline for quantitative data. However, in Las Vegas, you must use it in conjunction with its Heat Map feature.

2. The Best "amenity" Resource: Clark County OpenWeb (GIS)

For specific amenities, the most authoritative resource is the Clark County GIS (Geographic Information Systems) OpenWeb. This is the tool professional developers and urban planners use.

3. The Best "Vibe" & Experience Resource: Local Master Plans

Las Vegas walkability is generally confined to specific "Master Planned Communities" (MPCs). The most reliable information for these comes directly from their specific planning documents, which detail trail systems that do not always appear on Google Maps.

Top Neighborhoods for Walkability (2024/2025 Context)

If you are looking for specific locations, these are currently the highest-rated areas for functional walkability:

Neighborhood Vibe Walkability Type
18b Arts District Urban/Hipster True Walkability: Genuine city blocks, coffee shops, bars, and galleries all connected by walkable streets.
Downtown Summerlin Suburban Luxury Destination Walkability: You likely drive to the area, but once there, you can walk to 100+ stores, dining, and the ballpark.
The District (Green Valley) Mixed-Use Village Walkability: Apartments and condos built directly above or next to a grocery store (Whole Foods) and retail street.
Downtown / East Fremont Gritty/Nightlife High Density: Very walkable for nightlife and dining, but can be patchy regarding essential amenities like grocery stores.

Summary Recommendation