Kostanjevica na Krki municipality in numbers
Kostanjevica na Krki has 2,424 residents (1 Jan 2026) on 58 km², or 42 per km² (Slovenia: 105). The average age is 45.6, above the Slovenian average of 44.6. In 2025 the population fell by 24 (-9.8 per 1,000 residents; Slovenia 2.0).
About Kostanjevica na Krki
The Municipality of Kostanjevica na Krki is a municipality in the traditional Lower Carniola region of southern Slovenia. The seat of the municipality is the town of Kostanjevica na Krki. It is part of the Lower Sava Statistical Region. It is located in the northern foothills of the Gorjanci Mountains and extends to the border with Croatia. It borders Croatia.
Population
Population 2019: 2,450, 2026: 2,424.
| Indicator | Kostanjevica na Krki | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Population | 2,424 | 2,135,107 | 1 Jan 2026 | |
| Men | 1,239 | 1,074,630 | 1 Jan 2026 | |
| Women | 1,185 | 1,060,477 | 1 Jan 2026 | |
| Area | 58 km² | 20,271 km² | 1 Jan 2026 | |
| Population density | 42 /km² | 105 /km² | 1 Jan 2026 | |
| Average age | 45.6 | 44.6 | 1 Jan 2026 | |
| Ageing index | 172.5 | 158.6 | 1 Jan 2026 | |
| Share aged under 15 | 13.9% | 14.2% | 1 Jan 2026 | |
| Share aged 65 or over | 24.1% | 22.5% | 1 Jan 2026 | |
| Share of foreign citizens | 1.7% | 10.5% | 1 Jan 2026 | |
| Live births | 8 | 16,961 | 3.3 · SI 8.0 | 2025 |
| Deaths | 26 | 21,223 | 10.6 · SI 10.0 | 2025 |
| Natural increase | -18 | -4,262 | -7.4 · SI -2.0 | 2025 |
| Net migration with other countries | -7 | 8,519 | -2.9 · SI 4.0 | 2025 |
| Net migration between municipalities | 1 | 0 | 0.4 · SI 0.0 | 2025 |
| Total increase | -24 | 4,257 | 2025 | |
| Total increase per 1,000 residents | -9.8 | 2.0 | 2025 |
Births and deaths by year
Live births 2018: 25, 2025: 8. Deaths 2018: 14, 2025: 26.
Total increase per 1,000 residents, against Slovenia
Kostanjevica na Krki 2018: 4.9, 2025: -9.8. Slovenia 2018: 6.8, 2025: 2.
Average age, against Slovenia
Kostanjevica na Krki 2019: 43.2, 2026: 45.6. Slovenia 2019: 43.4, 2026: 44.6.
Kindergartens, schools and students
| Indicator | Kostanjevica na Krki | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Kindergartens and units | 1 | 982 | 2025/26 | |
| Children in kindergartens | 96 | 79,868 | 39.2 · SI 37.5 | 2025/26 |
| Primary schools and branches | 1 | 821 | 2025/26 | |
| Primary school pupils | 237 | 192,915 | 96.8 · SI 90.5 | 2025/26 |
| Secondary school pupils (by residence) | 103 | 86,624 | 42.1 · SI 40.7 | 2025/26 |
| Tertiary students (by residence) | 94 | 85,999 | 38.4 · SI 40.4 | 2025/26 |
| Adults with tertiary education | 23.3% | 26.6% | 2025 |
Children in kindergartens and pupils by year
Children in kindergartens 2018: 98, 2025: 96. Primary school pupils 2018: 231, 2025: 237.
Work, wages and income
The average net wage at employers in Kostanjevica na Krki was €1,316.87 a month in 2025, 18% below the Slovenian average of €1,602.05. The municipality has 759 jobs and 1,112 working residents; a labour migration index of 66 means more people commute out of it than into it. There are 200 companies (2024), 83 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 | Kostanjevica na Krki | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Persons in employment (by residence) | 1,112 | 940,987 | 454.2 · SI 441.6 | 2025 |
| Jobs in the municipality | 759 | 940,987 | 310.0 · SI 441.6 | 2025 |
| Employees (by workplace) | 651 | 836,620 | 265.9 · SI 392.6 | 2025 |
| Self-employed (by workplace) | 108 | 104,368 | 44.1 · SI 49.0 | 2025 |
| Commuting index | 66 | 100 | 2025 | |
| Average monthly gross wage | 2,018.70 € | 2,536.03 € | 2025 | |
| Average monthly net wage | 1,316.87 € | 1,602.05 € | 2025 | |
| Net income per resident (annual) | 14,627 € | 14,208 € | 2024 | |
| Median net income of residents (annual) | 12,529 € | 12,455 € | 2024 |
Companies and tourism
| Indicator | Kostanjevica na Krki | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Number of companies | 200 | 234,446 | 81.2 · SI 110.4 | 2024 |
| Persons employed by companies | 827 | 1,008,213 | 335.6 · SI 474.7 | 2024 |
| Company turnover | 91,786 k€ | 166,401,581 k€ | 2024 | |
| Tourist arrivals | 2,020 | 6,993,930 | 825.2 · SI 3,282.2 | 2025 |
| Tourist overnight stays | 3,561 | 17,843,311 | 1,454.7 · SI 8,373.8 | 2025 |
| Overnight stays by foreign tourists | 2,148 | 13,358,792 | 877.5 · SI 6,269.2 | 2025 |
Number of companies by year
Number of companies 2017: 178, 2024: 200.
Tourist overnight stays by year
Tourist overnight stays 2018: 3,551, 2025: 3,561. Overnight stays by foreign tourists 2018: 2,519, 2025: 2,148.
Housing
At the 2021 census Kostanjevica na Krki had 1,036 dwellings, with an average useful floor area of 87.5 m² (Slovenia 83.3 m²). 1,661 passenger cars are registered, 685 per 1,000 residents (Slovenia 603).
| Indicator | Kostanjevica na Krki | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Number of dwellings | 1,036 | 864,323 | 2021 | |
| Dwellings per 1,000 residents | 424 | 410 | 2021 | |
| Occupied dwellings | 797 | 698,747 | 2021 | |
| Holiday dwellings | 31 | 18,411 | 12.7 · SI 8.7 | 2021 |
| Average usable floor area of a dwelling | 87.5 m² | 83.3 m² | 2021 |
Cars and waste
| Indicator | Kostanjevica na Krki | Slovenia | Per 1,000 residents | Year |
|---|---|---|---|---|
| Passenger cars | 1,661 | 1,286,588 | 678.5 · SI 603.8 | 2025 |
| Municipal waste generated per resident | 473 kg | 526 kg | 2024 | |
| Municipal waste collected by public service, per resident | 273 kg | 376 kg | 2024 |
Passenger cars per 1,000 residents, against Slovenia
Kostanjevica na Krki 2018: 617.9, 2025: 678.5. Slovenia 2018: 557.5, 2025: 603.8.
The area on the map
Property prices in in Kostanjevica na Krki
What apartments and houses cost in in Kostanjevica na Krki, 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 Kostanjevica na Krki?
The municipality of Kostanjevica na Krki had 2,424 residents on 1 Jan 2026 (SURS). It covers 58 km².
What is the average wage in Kostanjevica na Krki?
In 2025 the average monthly net wage at legal persons in Kostanjevica na Krki was €1,316.87 (gross €2,018.70), against €1,602.05 in Slovenia.
What is the average age in Kostanjevica na Krki?
45.6 years (1 Jan 2026); the Slovenian average is 44.6. The ageing index is 172.5.
How many schools and kindergartens are there in Kostanjevica na Krki?
In the 2025/26 school year Kostanjevica na Krki had 1 primary schools and branches with 237 pupils; there are 1 kindergartens and units with 96 children.
How many companies are based in Kostanjevica na Krki?
In 2024 200 companies were based in Kostanjevica na Krki, employing 827 people with a turnover of €92 million.
How many tourists visit Kostanjevica na Krki?
In 2025 Kostanjevica na Krki recorded 3,561 tourist overnight stays from 2,020 arrivals; 2,148 of the nights were by foreign tourists.