Koper municipality in numbers
Koper has 54,795 residents (1 Jan 2026) on 303 km², or 181 per km² (Slovenia: 105). The average age is 45.3, above the Slovenian average of 44.6. In 2025 the population grew by 371 (6.8 per 1,000 residents; Slovenia 2.0).
About Koper
The Urban Municipality of Koper is one of twelve urban municipalities of Slovenia. It is located at the coastline of the Adriatic Sea in southwestern Slovenia and was established in 1994. The seat of the municipality is the town of Koper. Since 1995, the area has been part of the Coastal–Karst Statistical Region. The municipality is bilingual, with both Slovene and Italian recognized, and it shares borders with Italy and Croatia.
Population
Population 2019: 52,234, 2026: 54,795.
| Indicator | Koper | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Population | 54,795 | 2,135,107 | 1 Jan 2026 | |
| Men | 27,158 | 1,074,630 | 1 Jan 2026 | |
| Women | 27,637 | 1,060,477 | 1 Jan 2026 | |
| Area | 303 km² | 20,271 km² | 1 Jan 2026 | |
| Population density | 181 /km² | 105 /km² | 1 Jan 2026 | |
| Average age | 45.3 | 44.6 | 1 Jan 2026 | |
| Ageing index | 174.5 | 158.6 | 1 Jan 2026 | |
| Share aged under 15 | 13.4% | 14.2% | 1 Jan 2026 | |
| Share aged 65 or over | 23.3% | 22.5% | 1 Jan 2026 | |
| Share of foreign citizens | 16.0% | 10.5% | 1 Jan 2026 | |
| Live births | 325 | 16,961 | 6.0 · SI 8.0 | 2025 |
| Deaths | 558 | 21,223 | 10.3 · SI 10.0 | 2025 |
| Natural increase | -233 | -4,262 | -4.3 · SI -2.0 | 2025 |
| Net migration with other countries | 319 | 8,519 | 5.9 · SI 4.0 | 2025 |
| Net migration between municipalities | 285 | 0 | 5.2 · SI 0.0 | 2025 |
| Total increase | 371 | 4,257 | 2025 | |
| Total increase per 1,000 residents | 6.8 | 2.0 | 2025 |
Births and deaths by year
Live births 2018: 457, 2025: 325. Deaths 2018: 512, 2025: 558.
Total increase per 1,000 residents, against Slovenia
Koper 2018: 8.5, 2025: 6.8. Slovenia 2018: 6.8, 2025: 2.
Average age, against Slovenia
Koper 2019: 43.8, 2026: 45.3. Slovenia 2019: 43.4, 2026: 44.6.
Kindergartens, schools and students
| Indicator | Koper | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Kindergartens and units | 24 | 982 | 2025/26 | |
| Children in kindergartens | 1,843 | 79,868 | 33.9 · SI 37.5 | 2025/26 |
| Primary schools and branches | 15 | 821 | 2025/26 | |
| Primary school pupils | 4,744 | 192,915 | 87.2 · SI 90.5 | 2025/26 |
| Secondary school pupils (by residence) | 2,045 | 86,624 | 37.6 · SI 40.7 | 2025/26 |
| Tertiary students (by residence) | 1,763 | 85,999 | 32.4 · SI 40.4 | 2025/26 |
| Adults with tertiary education | 26.1% | 26.6% | 2025 |
Children in kindergartens and pupils by year
Children in kindergartens 2018: 2,205, 2025: 1,843. Primary school pupils 2018: 4,651, 2025: 4,744.
Work, wages and income
The average net wage at employers in Koper was €1,609.60 a month in 2025, about level with the Slovenian average of €1,602.05. The municipality has 25,379 jobs and 24,414 working residents; a labour migration index of 108 means more people commute into it than out of it. There are 7,119 companies (2024), 130 per 1,000 residents (Slovenia 110).
Wages up to 2023 under the previous methodology (all wage earners), from 2023 under the current one (legal persons). The two series are drawn separately.
| Indicator | Koper | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Persons in employment (by residence) | 24,414 | 940,987 | 448.5 · SI 441.6 | 2025 |
| Jobs in the municipality | 25,379 | 940,987 | 466.3 · SI 441.6 | 2025 |
| Employees (by workplace) | 22,975 | 836,620 | 422.1 · SI 392.6 | 2025 |
| Self-employed (by workplace) | 2,404 | 104,368 | 44.2 · SI 49.0 | 2025 |
| Commuting index | 108 | 100 | 2025 | |
| Average monthly gross wage | 2,542.58 € | 2,536.03 € | 2025 | |
| Average monthly net wage | 1,609.60 € | 1,602.05 € | 2025 | |
| Net income per resident (annual) | 14,086 € | 14,208 € | 2024 | |
| Median net income of residents (annual) | 12,651 € | 12,455 € | 2024 |
Companies and tourism
| Indicator | Koper | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Number of companies | 7,119 | 234,446 | 131.2 · SI 110.4 | 2024 |
| Persons employed by companies | 24,812 | 1,008,213 | 457.3 · SI 474.7 | 2024 |
| Company turnover | 4,816,158 k€ | 166,401,581 k€ | 2024 | |
| Tourist arrivals | 129,603 | 6,993,930 | 2,381.1 · SI 3,282.2 | 2025 |
| Tourist overnight stays | 363,927 | 17,843,311 | 6,686.1 · SI 8,373.8 | 2025 |
| Overnight stays by foreign tourists | 294,799 | 13,358,792 | 5,416.1 · SI 6,269.2 | 2025 |
Number of companies by year
Number of companies 2017: 6,295, 2024: 7,119.
Tourist overnight stays by year
Tourist overnight stays 2018: 283,217, 2025: 363,927. Overnight stays by foreign tourists 2018: 194,779, 2025: 294,799.
Housing
At the 2021 census Koper had 23,097 dwellings, with an average useful floor area of 78.8 m² (Slovenia 83.3 m²). 34,602 passenger cars are registered, 631 per 1,000 residents (Slovenia 603).
| Indicator | Koper | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Number of dwellings | 23,097 | 864,323 | 2021 | |
| Dwellings per 1,000 residents | 433 | 410 | 2021 | |
| Occupied dwellings | 18,179 | 698,747 | 2021 | |
| Holiday dwellings | 290 | 18,411 | 5.4 · SI 8.7 | 2021 |
| Average usable floor area of a dwelling | 78.8 m² | 83.3 m² | 2021 |
Cars and waste
| Indicator | Koper | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Passenger cars | 34,602 | 1,286,588 | 635.7 · SI 603.8 | 2025 |
| Municipal waste generated per resident | 575 kg | 526 kg | 2024 | |
| Municipal waste collected by public service, per resident | 438 kg | 376 kg | 2024 |
Passenger cars per 1,000 residents, against Slovenia
Koper 2018: 593.9, 2025: 635.7. Slovenia 2018: 557.5, 2025: 603.8.
The area on the map
Property prices in in Koper
What apartments and houses cost in in Koper, what rents are and how much is being built is on the property prices and rental prices pages and on the interactive map.
Source: Statistical Office of the Republic of Slovenia (SURS), SiStat database, tables 05E1022S, 05C4010S, 05C4008S, 05I1002S, 05I3002S, 05G2014S, 0952570S, 0952752S, 0953236S, 0955069S, 0775365S, 0775341S, 0772750S, 0701024S, 0772615S, 0883206S, 1418807S, 2164525S, 0861101S, 2222105S, 2700020S. Licence CC BY 4.0. Every row carries the year or date it is for; half-yearly population figures are as at 1 January or 1 July.
Frequently asked questions
How many people live in Koper?
The municipality of Koper had 54,795 residents on 1 Jan 2026 (SURS). It covers 303 km².
What is the average wage in Koper?
In 2025 the average monthly net wage at legal persons in Koper was €1,609.60 (gross €2,542.58), against €1,602.05 in Slovenia.
What is the average age in Koper?
45.3 years (1 Jan 2026); the Slovenian average is 44.6. The ageing index is 174.5.
How many schools and kindergartens are there in Koper?
In the 2025/26 school year Koper had 15 primary schools and branches with 4,744 pupils; there are 24 kindergartens and units with 1,843 children.
How many companies are based in Koper?
In 2024 7,119 companies were based in Koper, employing 24,812 people with a turnover of €4,816 million.
How many tourists visit Koper?
In 2025 Koper recorded 363,927 tourist overnight stays from 129,603 arrivals; 294,799 of the nights were by foreign tourists.