All Countries
Castlefin, Ireland
Ulster · Ireland
Castlefin is a small town in Ulster, Ireland with a population of 787. Elevation: 33 ft (10 m). Average temperature: 49°F (9°C).
Data updated June 2026
Discover Castlefin, Ireland
Explore over 40 sections covering people, economy, housing, health, crime, climate, community, costs, trends, schools, colleges, hospitals, treatment centers, industries, museums, libraries, breweries, farmers markets, grocery stores, pharmacies, campgrounds, parks, trails, stadiums, ski resorts, daycare centers, nursing homes, churches, fire stations, cell towers, bridges, power plants, EV stations, prisons, radio stations, airports, police stations, post offices, Amtrak stations, superfund sites, UNESCO sites, and more.
Use the tabs and dropdown menus below to navigate every data point we track for this city.
About Castlefin
Castlefin, sometimes spelt Castlefinn, is a market town and townland in the Finn Valley of County Donegal, Ireland. It is located between Stranorlar and Lifford in East Donegal. As of 2022, the population was 730. The River Finn flows by the town. The town is located in along the main N15 national primary road, which runs from Bundoran to Lifford. The town lies 6 miles from Lifford and 8 miles from the twin towns of Ballybofey and Stranorlar. It has close links to Letterkenny, to the twin towns of Ballybofey and Stranorlar, and to West Tyrone in Northern Ireland, especially with the towns of Strabane and Castlederg.
People
Climate
| Population | 787 |
| Population Density | 1,711 / sq mi |
| Elevation | 33 ft (10 m) |
| Coordinates | 54.8031°, -7.5957° |
| Timezone | Europe/Dublin |
| Country | 🇮🇪 Ireland |
| State / Province | Ulster |
| Average Temperature | 49°F (9°C) |
| January Average | 40°F (5°C) |
| July Average | 58°F (15°C) |
| Annual Precipitation | 63.4 inches (1,609 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
About Castlefin
Castlefin is a small town in Ireland (Ulster) with a population of 787. The city sits at an elevation of 33 feet (10 meters) above sea level. The average annual temperature is 49°F (9°C). Temperatures range from 40°F in January to 58°F in July. Annual precipitation averages 63.4 inches. The timezone is Europe/Dublin.
Temperature
| Annual Average | 48.7°F |
| 10% below Ireland avg | |
| January Average | 40°F (5°C) |
| July Average | 58°F (15°C) |
| Sunny Days | 221 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 1,711/sq mi |
| Coordinates | 54.8031°N, 7.5957°W |
| Timezone | Europe/Dublin |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 6.6 in | Coldest |
| February | 41°F (5°C) | 4.7 in | |
| March | 43°F (6°C) | 4.9 in | |
| April | 46°F (8°C) | 3.6 in | |
| May | 51°F (11°C) | 3.5 in | Driest |
| June | 55°F (13°C) | 3.8 in | |
| July | 58°F (15°C) | 4.3 in | Warmest |
| August | 58°F (15°C) | 5.0 in | |
| September | 55°F (13°C) | 5.8 in | |
| October | 50°F (10°C) | 6.9 in | |
| November | 45°F (7°C) | 7.2 in | Wettest |
| December | 42°F (5°C) | 7.1 in |
Castlefin has a seasonal temperature swing of 18°F / from 40°F in January to 58°F in July. Total annual precipitation is 63.4 inches, with November being the wettest month (7.2") and May the driest (3.5").
Schools in Castlefin
1 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| St. Mary's National School | - | - | - | - |
Radio Stations near Castlefin
2 stations within ~55 km.
| Station | Genre | Quality | |
|---|---|---|---|
| Highland Radio | popular music, variety | MP3 128 kbps | |
| Northern Sound | - | AAC 64 kbps |
Museums in Castlefin
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Donegal County Museum |
Libraries in Castlefin
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Castlederg Library | 0.0 | |||||
| Creggan Library | 0.0 | |||||
| Letterkenny Library | 0.0 | |||||
| Lifford Library | 0.0 | |||||
| Newtownstewart Library | 0.0 | |||||
| Public Library | 0.0 | |||||
| Strabane Library | 0.0 |
Farmers Markets in Castlefin
| Name | Address | Season | Hours | Organic | Website |
|---|---|---|---|---|---|
| Former Gortlee Livestock Mart | |||||
| Livestock Mart | |||||
| Market Square |
Gas Stations in Castlefin
2 gas stations within city radius - OpenStreetMap data
Breweries in Castlefin
| Name | Type | Address | Phone | Website |
|---|---|---|---|---|
| Barronscourt Brewing Company | ||||
| Finn Valley Brewing Company | ||||
| Kinnegar Brewing Company | ||||
| Old Mill Brewing Company |
Stadiums & Teams in Castlefin
| Team | League | Division |
|---|---|---|
Airports Near Castlefin
15 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| City of Derry Airport | LDY | Medium Airport |
| Donegal Airport | CFN | Medium Airport |
| Enniskillen/St Angelo Airport | ENK | Medium Airport |
| Altamuskin | - | Small Airport |
| Ashfield - Russell's field UL | - | Small Airport |
| Bellarena Airfield | - | Small Airport |
| Carrickmore Airstrip | - | Small Airport |
| Carrigart Airstrip | - | Small Airport |
| Coulters Airstrip | - | Small Airport |
| Drumavish Airstrip | - | Small Airport |
| Dunnamanagh Airstrip | - | Small Airport |
| Finn Valley Airfield UL | - | Small Airport |
| Letterkenny Airfield | - | Small Airport |
| Pettigo Airstrip | - | Small Airport |
| Ruskey Airstrip | - | Small Airport |
Post Offices in Castlefin
1 post offices.
| Post Office | Address |
|---|---|
| Castlefin Post Office |
Churches & Religious Organizations in Castlefin
1 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Saint Mary's |
Quick Facts
🇮🇪 About Ireland
Public Holidays in Ireland
11 public holidays this year
Download Full City Report
Get a comprehensive, print-ready PDF with all data for Castlefin.
Get ReportFrequently Asked Questions About Castlefin
What is the population of Castlefin?
Castlefin has a population of 787 residents and is located in Ireland. The population density is 1,711 people per square mile, spread across 0.5 square miles.
What is the weather like in Castlefin?
Castlefin has a four-season climate with an average annual temperature of 49°F (9°C). Winter temperatures average 40°F in January, while summers reach an average of 58°F in July. The area receives 221 sunny days per year. Annual rainfall totals 63.4 inches.