River
Ipoly
233 km from source to mouth · Hungary and Slovakia.
Hungary and SlovakiaFlows into Danube6th longest in Hungary
In numbers
Length
233km
Average flow
21m³/s
Basin
5,151km²
Drop
424m
from 525 m to 101 m
Countries
2
The journey
From source to mouth
233 km of river and 20 stops on the way: 17 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 525 m
- 0 kmČierny Balog4,963 people
- 11 kmValaská3,583 people
- 15 kmPodbrezová3,795 people
- 42 kmSlovenská Ľupča3,260 people
- 54 kmBanská Bystrica74,590 people
- 71 kmSliač4,786 people
- 75 kmZvolen39,844 people
- 103 kmŽiar nad Hronom16,955 people
- 123 kmŽarnovica5,699 people
- 134 kmNová Baňa6,881 people
- 153 kmTlmače3,542 people
- 188 kmVyškovce nad Ipľom649 people
- 189 kmŽeliezovce6,588 people
- 195 kmŠtiavnicatributary
- 220 kmLetkés-Salka Bridge
- 222 kmŠtúrovo9,361 people
- 223 kmEsztergom28,785 people
- 226 kmLeľa312 people
- 232 kmSávoly Bridge
- 232 kmSzob3,065 people
- 233 kmDanubeat 101 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Slovakia and Hungary
At the mouth it carries 21 m³/s on average: an Olympic pool every 119 seconds. It drops from 525 m to 101 m, 1.8 m per kilometre on average. Its basin covers 5,151 km², about the size of TT. 23.5 million people live in it. Highest water: from May to June; lowest: from January to February. Its dams hold back little of its water (5.2% of a year's flow).
Where to start
- Banská BystricaLargest city on its banks · 74,590 people
- Sliač Airport (SLD)Nearest airport with scheduled flights, 11 km from the cityCar hire at TAT airport (Poprad)Discover Cars · Affiliate link↗
- On the water24 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- Kayak and canoe6 put-ins and rapids mapped (OpenStreetMap)
- From May to SeptemberThe best months to visit
Ipoly, month by month
Highest water: from May to June
Lowest water: from January to February. Best months to visit: from May to September.
From about 1,400 m³/s in the lowest month to 3,600 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.
Plan the trip
Plan the trip: boat trips, a bed by the river, a car
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The basin
Ipoly: the basin in numbers
177,454 km² of land send their water to this river. This is what lives on it.
- 23.5millionpeople live in the basin
- 133/km²people per km²
- 627maverage altitude of the basin
- 859mmof rain a year (basin average)
- 7.3°Caverage air temperature
- 23%protected areas
- 0.6%covered by lakes
- 1%permafrost
- 3.8km³held in reservoirs
What covers the basin
- 50% Forest
- 31% Cropland
- 17% Pasture
- 6% Towns and cities
RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.
Along the river
Ipoly: what you find on the way
- 71WeirsHať Šalková, Szent Mária-szigeti zárás and 69 more
- 1LocksHornoperecký kanál
- 5WaterfallsKremničiansky vodopád, Termálny vodopád and 3 more
- 5Rapids
- 1Canoe put-ins
- 10Boat ramps
- 1Ferry piersErzsébet park
- 8MarinasBrusno, Kráľovná, Ľubietová and 5 more
- 1River beachesLučatínska pláž
From OpenStreetMap, within 2.5 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Ipoly in our other atlases
What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.
32mountains at the sourcePeakyas
Mountains at the source (32)
Within 15 km of the source, by Peakyas
- Poľana12 km away1,458m
- Klenovský Vepor12 km away1,338m
- Predná Poľana13 km away1,367m
- Brusniansky grúň13 km away1,271m
- Hájny grúň15 km away1,208m
- Záhorská skala10 km away1,132m
- Obrubovanec7.6 km away1,020m
- Vrchdetva14 km away1,062m
24 more on PeakyasOpen Peakyas ↗
From space
The source and the mouth, seen from orbit
Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.
Photos
Ipoly in pictures
Tributaries
Where it flows, and what flows into it
It flows into
Danube
Romania2,850 km5,400 m³/sTributaries (10)
Also: Krupinica, Štiavnica, Krtíš, Suchá, Krivánsky potok, Banský potok, Babský potok, Stracinský potok, Jelšovka, Čebovský potok
Serbia
Croatia
Germany
Moldova
AustriaNearby
Rivers nearby
Where these numbers come from
| Name, length, places | Wikidata (Q748872) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Our other atlases | Peakyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST |
Every source and licence is on the data sources page.
The family
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