Danish species per municipalities.

       
Blue Chaser (Libellula fulva)
Denmark
Status: In Denmark localized with strongholds in central Jylland near the large lakes and along Gudenåen. Similar stronghold on Sjælland along Susåen. Elsewhere scarce or accidental. Also recently found on Fyn. Probably stable or perhaps expanding.

Not seen:
Endelave
Assens:
Several records near Brydegård 2018-25 (https://www.naturbasen.dk/observation?id=2592461)
Aarhus:
5 records spread out over the municipality 2023-25 (https://www.naturbasen.dk/observation?id=4588463)
Faxe:
1 record Susåen e/Hesede Skov 2023 (https://www.naturbasen.dk/observation?id=4756504), 1 record Haslev 2023 (https://www.naturbasen.dk/observation?id=4183230), 1 record Sø Torup Sø 2014 (https://www.inaturalist.org/observations/218307766)
Kalundborg:
Several records bwt. Kalundborg and Saltbæk 2019-25 (https://www.naturbasen.dk/observation?id=4859099), several records near Halleby Å 2019-25 (https://www.naturbasen.dk/observation?id=4841669), 1 record Saltbæk Vig 2021 (https://arter.dk/fund/30685571), 1 record Åmosen 2023 (https://arter.dk/fund/30774414)
Favrskov:
Several records spread out over the municipality, including Gudenåen 2021-25 (https://www.naturbasen.dk/observation?id=861509)
Holbæk:
1 record Åmosen 2025 (https://www.naturbasen.dk/observation?id=5188223)
Holstebro:
Population Stubbergård/Flyndersø 2021-25 (https://www.naturbasen.dk/observation?id=3823659)
Horsens:
Stronghold in the north, Addit to Voervadsbro 2007-ongoing (https://www.naturbasen.dk/observation?id=144950)
Ikast-Brande:
3 records Mattrup Å 2025 (https://www.naturbasen.dk/observation?id=5193937), 1 undocumented record Hampen 2019 (https://www.naturbasen.dk/observation?id=3082913), 3 undocumented records near Bølling Sø 2018+25 (https://www.naturbasen.dk/observation?id=2603662)
Kolding:
1 record Svanemosen 2013 (https://www.naturbasen.dk/observation?id=1035334)
Næstved:
Strongholds Holmegaards Mose and along Susåen especially at Herlufsholm 1999-ongoing (https://www.naturbasen.dk/observation?id=3826970), 4 uncodumented records Saltø Å 2021+23 (https://www.naturbasen.dk/observation?id=3896262)
Odsherred:
1 undocumented record ø/Asnæs 2012 (https://arter.dk/fund/14537105)
Ringsted:
Several records throughout the municipality, many along Ringsted Å 2021-25 (https://www.naturbasen.dk/observation?id=3826970)
Sorø:
Stronghold along Gudenåen 2005-ongoing (https://www.naturbasen.dk/observation?id=56536), several records Bromme to Lynge Huse 2015-2025 (https://www.naturbasen.dk/observation?id=1585617), 2 records Bjernede Storskov 2023 (https://www.naturbasen.dk/observation?id=4594429)
Silkeborg:
General stronghold, the lakes and Gudenåen ?-ongoing (https://www.naturbasen.dk/observation?id=2339016)
Skanderborg:
Stronghold the lakes and near the village Ry 2005-ongoing (https://www.naturbasen.dk/observation?id=106674)
Vejen:
1 undocumented record Kongeåen, Foldingbro 2014 (https://www.naturbasen.dk/observation?id=1235370)
Viborg:
1 undocumented record Tange 2011 (https://www.naturbasen.dk/observation?id=689762), 1 record Bjerringbro 2016 (https://www.naturbasen.dk/observation?id=1976674), 1 undocumented record Tange Sø 2016 (https://www.naturbasen.dk/observation?id=1989306), 1 undocumented record Hald Sø 2018 (https://www.naturbasen.dk/observation?id=2618075), 1 record bruunshåb 2020 (https://www.naturbasen.dk/observation?id=3451974), 1 record Tastum Plantage (https://www.naturbasen.dk/observation?id=5177223)
Midtjylland
Aarhus
Favrskov
Holstebro
Horsens
Ikast-Brande
Silkeborg
Skanderborg
Viborg
Syddanmark
Assens
Kolding
Vejen
Østdanmark
Faxe
Holbæk
Kalundborg
Næstved
Odsherred
Ringsted
Sorø