Sežana municipality in numbers
Sežana has 13,669 residents (1 Jan 2026) on 217 km², or 63 per km² (Slovenia: 105). The average age is 46.6, above the Slovenian average of 44.6. In 2025 the population fell by 59 (-4.3 per 1,000 residents; Slovenia 2.0).
About Sežana
The Municipality of Sežana is a municipality in the Littoral region of Slovenia, near the Italian border. The seat of the municipality is the town of Sežana. The municipality was established on 6 November 1994, when the former Municipality of Sežana was split into four smaller municipalities. It borders Italy.
Population
Population 2019: 13,425, 2026: 13,669.
| Indicator | Sežana | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Population | 13,669 | 2,135,107 | 1 Jan 2026 | |
| Men | 6,925 | 1,074,630 | 1 Jan 2026 | |
| Women | 6,744 | 1,060,477 | 1 Jan 2026 | |
| Area | 217 km² | 20,271 km² | 1 Jan 2026 | |
| Population density | 63 /km² | 105 /km² | 1 Jan 2026 | |
| Average age | 46.6 | 44.6 | 1 Jan 2026 | |
| Ageing index | 191.3 | 158.6 | 1 Jan 2026 | |
| Share aged under 15 | 13.2% | 14.2% | 1 Jan 2026 | |
| Share aged 65 or over | 25.3% | 22.5% | 1 Jan 2026 | |
| Share of foreign citizens | 18.4% | 10.5% | 1 Jan 2026 | |
| Live births | 102 | 16,961 | 7.4 · SI 8.0 | 2025 |
| Deaths | 158 | 21,223 | 11.5 · SI 10.0 | 2025 |
| Natural increase | -56 | -4,262 | -4.1 · SI -2.0 | 2025 |
| Net migration with other countries | 68 | 8,519 | 5.0 · SI 4.0 | 2025 |
| Net migration between municipalities | -71 | 0 | -5.2 · SI 0.0 | 2025 |
| Total increase | -59 | 4,257 | 2025 | |
| Total increase per 1,000 residents | -4.3 | 2.0 | 2025 |
Births and deaths by year
Live births 2018: 98, 2025: 102. Deaths 2018: 139, 2025: 158.
Total increase per 1,000 residents, against Slovenia
Sežana 2018: 11.2, 2025: -4.3. Slovenia 2018: 6.8, 2025: 2.
Average age, against Slovenia
Sežana 2019: 45.2, 2026: 46.6. Slovenia 2019: 43.4, 2026: 44.6.
Kindergartens, schools and students
| Indicator | Sežana | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Kindergartens and units | 6 | 982 | 2025/26 | |
| Children in kindergartens | 469 | 79,868 | 34.2 · SI 37.5 | 2025/26 |
| Primary schools and branches | 4 | 821 | 2025/26 | |
| Primary school pupils | 1,079 | 192,915 | 78.6 · SI 90.5 | 2025/26 |
| Secondary school pupils (by residence) | 524 | 86,624 | 38.2 · SI 40.7 | 2025/26 |
| Tertiary students (by residence) | 418 | 85,999 | 30.4 · SI 40.4 | 2025/26 |
| Adults with tertiary education | 25.2% | 26.6% | 2025 |
Children in kindergartens and pupils by year
Children in kindergartens 2018: 485, 2025: 469. Primary school pupils 2018: 1,138, 2025: 1,079.
Work, wages and income
The average net wage at employers in Sežana was €1,424.28 a month in 2025, 11% below the Slovenian average of €1,602.05. The municipality has 6,143 jobs and 5,919 working residents; a labour migration index of 108 means more people commute into it than out of it. There are 1,888 companies (2024), 138 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 | Sežana | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Persons in employment (by residence) | 5,919 | 940,987 | 431.1 · SI 441.6 | 2025 |
| Jobs in the municipality | 6,143 | 940,987 | 447.4 · SI 441.6 | 2025 |
| Employees (by workplace) | 5,287 | 836,620 | 385.1 · SI 392.6 | 2025 |
| Self-employed (by workplace) | 857 | 104,368 | 62.4 · SI 49.0 | 2025 |
| Commuting index | 108 | 100 | 2025 | |
| Average monthly gross wage | 2,220.30 € | 2,536.03 € | 2025 | |
| Average monthly net wage | 1,424.28 € | 1,602.05 € | 2025 | |
| Net income per resident (annual) | 13,805 € | 14,208 € | 2024 | |
| Median net income of residents (annual) | 12,638 € | 12,455 € | 2024 |
Companies and tourism
| Indicator | Sežana | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Number of companies | 1,888 | 234,446 | 136.4 · SI 110.4 | 2024 |
| Persons employed by companies | 6,215 | 1,008,213 | 449.1 · SI 474.7 | 2024 |
| Company turnover | 909,184 k€ | 166,401,581 k€ | 2024 | |
| Tourist arrivals | 73,116 | 6,993,930 | 5,325.7 · SI 3,282.2 | 2025 |
| Tourist overnight stays | 129,999 | 17,843,311 | 9,468.9 · SI 8,373.8 | 2025 |
| Overnight stays by foreign tourists | 115,718 | 13,358,792 | 8,428.7 · SI 6,269.2 | 2025 |
Number of companies by year
Number of companies 2017: 1,644, 2024: 1,888.
Tourist overnight stays by year
Tourist overnight stays 2018: 100,560, 2025: 129,999. Overnight stays by foreign tourists 2018: 87,971, 2025: 115,718.
Housing
At the 2021 census Sežana had 5,943 dwellings, with an average useful floor area of 91.1 m² (Slovenia 83.3 m²). 9,334 passenger cars are registered, 683 per 1,000 residents (Slovenia 603).
| Indicator | Sežana | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Number of dwellings | 5,943 | 864,323 | 2021 | |
| Dwellings per 1,000 residents | 431 | 410 | 2021 | |
| Occupied dwellings | 4,727 | 698,747 | 2021 | |
| Holiday dwellings | 69 | 18,411 | 5.0 · SI 8.7 | 2021 |
| Average usable floor area of a dwelling | 91.1 m² | 83.3 m² | 2021 |
Cars and waste
| Indicator | Sežana | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Passenger cars | 9,334 | 1,286,588 | 679.9 · SI 603.8 | 2025 |
| Municipal waste generated per resident | 434 kg | 526 kg | 2024 | |
| Municipal waste collected by public service, per resident | 334 kg | 376 kg | 2024 |
Passenger cars per 1,000 residents, against Slovenia
Sežana 2018: 642.9, 2025: 679.9. Slovenia 2018: 557.5, 2025: 603.8.
The area on the map
Property prices in in Sežana
What apartments and houses cost in in Sežana, 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 Sežana?
The municipality of Sežana had 13,669 residents on 1 Jan 2026 (SURS). It covers 217 km².
What is the average wage in Sežana?
In 2025 the average monthly net wage at legal persons in Sežana was €1,424.28 (gross €2,220.30), against €1,602.05 in Slovenia.
What is the average age in Sežana?
46.6 years (1 Jan 2026); the Slovenian average is 44.6. The ageing index is 191.3.
How many schools and kindergartens are there in Sežana?
In the 2025/26 school year Sežana had 4 primary schools and branches with 1,079 pupils; there are 6 kindergartens and units with 469 children.
How many companies are based in Sežana?
In 2024 1,888 companies were based in Sežana, employing 6,215 people with a turnover of €909 million.
How many tourists visit Sežana?
In 2025 Sežana recorded 129,999 tourist overnight stays from 73,116 arrivals; 115,718 of the nights were by foreign tourists.