Sundbyfoss

{{Short description|Village in Holmestrand, Norway}}

{{Infobox settlement

|official_name = Sundbyfoss

|other_name =

|native_name =

|native_name_lang =

|nickname =

|settlement_type = Village

|image_skyline = Sundbyfosz.jpg

|image_caption = View of the village in 2013

|pushpin_map = Vestfold#Norway

|pushpin_label_position = top

|pushpin_label =

|pushpin_mapsize =

|pushpin_map_caption = Location of the village

|subdivision_type = Country

|subdivision_name = Norway

|subdivision_type1 = Region

|subdivision_name1 = Eastern Norway

|subdivision_type2 = County

|subdivision_name2 = Vestfold

|subdivision_type3 = District

|subdivision_name3 = Jarlsberg

|subdivision_type4 = Municipality

|subdivision_name4 = Holmestrand Municipality

|timezone1 = CET

|utc_offset1 = +01:00

|timezone1_DST = CEST

|utc_offset1_DST = +02:00

|area_footnotes =

|area_total_km2 = 0.47

|population_as_of = 2024

|population_footnotes =

|population_total = 562

|population_density_km2 = 1195

|postal_code_type = Post Code

|postal_code = 3092 Sundbyfoss

|coordinates = {{coord|59.51188|10.12565|region:NO_type:city|display=inline,title}}

|elevation_m = 80

|elevation_footnotes = {{Cite web |title=Sundbyfoss, Holmestrand |url=https://www.yr.no/nb/v%C3%A6rvarsel/daglig-tabell/1-511751/Norway/Vestfold/Holmestrand/Sundbyfoss |access-date=2024-03-21 |publisher=yr.no}}}}

Sundbyfoss is a village in Holmestrand Municipality in Vestfold county, Norway. The village is located along the lake Hillestadvannet, about {{convert|3|km}} south of the village of Hof. The village of Gullhaug lies about {{convert|7|km}} to the southeast and the town of Holmestrand lies about {{convert|10|km}} to the southeast. The village of Hvittingfoss in Kongsberg Municipality lies about {{convert|8|km}} to the west. Hillestad Church lies about {{convert|3|km}} east of the village.{{Cite encyclopedia |title=Sundbyfoss |encyclopedia=Store norske leksikon |publisher=Kunnskapsforlaget |url=https://snl.no/Sundbyfoss |date=2023-12-20 |editor-last=Lundbo |editor-first=Sten |language=no |accessdate=2024-03-21}}

The {{convert|0.47|km2|acre|adj=on}} village has a population (2024) of 562 and a population density of {{convert|1195|PD/km2}}.{{Cite web |last=Statistisk sentralbyrå |author-link=Statistics Norway |date=2023-01-01 |title=Urban settlements. Population and area, by municipality |url=https://www.ssb.no/en/befolkning/statistikker/beftett/aar}}

Sundbyfoss is named after the local waterfall on the river Sundbyelva. The waterfall provided the basis for early industry in the village. Today, Sundbyfoss is mainly a residential area. The largest industrial enterprise is the "Haslestad Bruk" sawmill. Historically, the old private Tønsberg–Eidsfoss railway line and Holmestrand–Vittingfoss railway line both went through Sundbyfoss.