What Is a Point of Interest (POI)? Mapping and Location Data Explained

Definition

A Point of Interest (POI) is a specific geographic location with associated attribute data that users find useful or noteworthy. POIs are the building blocks of digital maps, navigation systems, location-based services, and geographic analysis.

Categories

• Natural: Mountains, lakes, rivers, beaches, parks, viewpoints
• Built Environment: Buildings, addresses, monuments, bridges, towers
• Commercial: Restaurants, hotels, shops, gas stations, ATMs, malls
• Transportation: Stations, stops, airports, ports, trailheads, parking
• Services: Hospitals, pharmacies, police, post offices, schools, embassies
• Cultural/Historical: Museums, temples, ruins, landmarks, heritage sites
• Recreational: Trailheads, campsites, golf courses, marinas, ski lifts

Data Structure

Each POI typically includes: coordinates (lat/long), name, category, address, contact info, hours, description, photos, reviews, ratings, and metadata (source, last update, access restrictions).

Sources

• Authoritative: Government surveys, postal services, cadastral data
• Commercial: TomTom, HERE, Google, Yelp, TripAdvisor, Foursquare
• Crowdsourced: OpenStreetMap, Wikidata, user contributions
• Specialized: Michelin (restaurants), IATA (airports), UNESCO (heritage)

Applications

Navigation (turn-by-turn), local search ("coffee near me"), tourism apps, real estate (walk scores), logistics (delivery optimization), urban planning (accessibility analysis), emergency response (nearest hospital), AR/location-based games.

Data Quality Challenges

Accuracy, currency, completeness, duplicate resolution, category consistency, multilingual names, access restrictions, seasonal/temporary POIs.