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Kostajnica
City in Republika Srpska, Bosnia and Herzegovina
Overview
Kostajnica is a small, scenic town on the banks of the Una river in northwestern Bosnia and Herzegovina, known for its picturesque landscapes and relaxed pace of life. Its proximity to Croatia and historical significance make it a pleasant stop for travelers seeking authenticity.
Geographic Context
Jurisdiction
Bosnia and Herzegovina
Entity
Republika Srpska
Population
3,834
Time Zone
Europe/Sarajevo
Coordinates
45.22°, 16.54°
Key Metrics
Safety Score · estimate
70
Female Safety
60
LGBTQ+ Safety
40
Traffic Safety
70
Food Safety
85
Monthly Cost · estimate
$703
Local Cost
$390
Local Income
$470
Cashless
25
English
30
Temperature
10.8°C
Summer Avg
20.8°C
Winter Avg
0.9°C
Record High
42.3°C
Record Low
-24.1°C
Humidity
80%
Precipitation
1094 mm
Internet Speed
19 Mbps
Upload
6 Mbps
Latency
7 ms
City Vibrancy
16
Coworking
0
Cafes
13
Nightlife
0
Parks
3
Transport
29
Walk Score
29
Footways
58.0
Airport
—
Distance
—
Explore
Data sources
Source-backed data
World Air Quality Index - Latest available city-level air quality station measurement. Record updated 2025-12-05.
OpenStreetMap - Nearby amenities counted from OpenStreetMap-derived city extracts. Record updated 2025-12-07.
OpenStreetMap transport extract - Walkability, footway density, and airport access metrics derived from mapped transport features. Record updated 2025-12-06.
Estimates and unverified origins
Oyster List climate data - Climate origins are unverified. Available methods include historical APIs and AI estimates; stored rows do not identify the original dataset, reference period, or model for each value. Treat these summaries as estimates until independently verified. Record updated 2026-03-22.
Oyster List city price estimates - Price origins are unverified. Available generation methods include AI estimates; stored records do not identify a survey, observation period, or model for each price. Record updated 2026-01-14.
Oyster List AI-assisted estimates - Safety, lifestyle, income, and practical scores include model-assisted estimates. Stored records do not identify supporting observations for each score. Model-reported confidence: 65/100; this is not a measured accuracy score. Model: derived+gpt-4.1. Record updated 2026-03-26.
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