| Killynumber | |
| Type: | townland |
| Translit Lang1: | Irish |
| Translit Lang1 Type: | Derivation: |
| Translit Lang1 Info: | Irish: Cúil an Umair |
| Translit Lang1 Type1: | Meaning: |
| Translit Lang1 Info1: | "Recess of the trough or hollow" |
| Translit Lang2 Type: | Derivation: |
| Translit Lang2 Type1: | Meaning: |
| Pushpin Map: | Northern Ireland#United Kingdom |
| Pushpin Map Caption: | Killynumber shown within Northern Ireland |
| Coordinates: | 54.792°N -6.686°W |
| Subdivision Type: | Sovereign state |
| Subdivision Name: | United Kingdom |
| Subdivision Type1: | Country |
| Subdivision Name1: | Northern Ireland |
| Subdivision Type2: | County |
| Subdivision Name2: | County Londonderry |
| Subdivision Type3: | Barony |
| Subdivision Name3: | Loughinsholin |
| Subdivision Type4: | Civil parish |
| Subdivision Name4: | Kilcronaghan |
| Leader Title: | Council |
| Leader Name: | Mid Ulster District |
| Leader Title1: | Ward |
| Leader Name1: | Tobermore |
| Established Title: | Plantation grant |
| Established Date: | Drapers Company and freeholds |
| Established Title1: | First recorded |
| Established Date1: | 1609 |
| Parts Type: | Settlements |
| Parts Style: | para |
| Area Total Ha: | 71.64 |
| Area Total Acre: | 177.04 |
| Blank Name Sec1: | Irish grid ref |
| Blank Info Sec1: | H8494 |
Killynumber (pronounced as /ˌkʲïliˈnӧmər/,) is a townland lying within the civil parish of Kilcronaghan, County Londonderry, Northern Ireland. It lies in the south-east with the civil parish of Desertmartin, and it is bounded by the townlands of Annagh & Moneysterlin, Coolsaragh, Drumsamney, Gortamney, and Killytoney. It was apportioned to the Drapers company as well as freeholds.
The townland was part of Tobermore electoral ward of the former Magherafelt District Council, however in 1901 and 1926 it was part of Iniscarn district electoral division as part of the Draperstown dispensary (registrar's) district of Magherafelt Rural District. It was also part of the historic barony of Loughinsholin.
The townland of Killynumber is postulated as being derived from Cúil an Umair meaning "recess of the trough or hollow", with a noticeable hollow lying within the townland.
| Year | Pop. | |
|---|---|---|
| 1841 | 121 | |
| 1851 | 100 | |
| 1861 | 80 | |
| 1871 | 64 | |
| 1881 | 65 | |
| 1891 | 64 | |
| 1901 | 38 | |
| 1911 | 44 | |
| 1926 | 35 | |
| Year | a, r, p | |
|---|---|---|
| 1851 | 180, 0, 33 | |
| 1881 | 180, 0, 33 | |
| 1901 | 180, 0, 33 | |
| 1926 | 180, 1, 32 |
| Year | Form | |
|---|---|---|
| 1609 | Coulanamour (O.S.) | |
| 1613 | Cowlanamone (Charter) | |
| 1622 | Colnumer | |
| 1654 | Cullnumber | |
| 1657 | Coulananonie | |
| 1659c | Cooleminiber | |
| 1661 | Cullminiber | |
| 1663 | Cullnamer | |
| 1767 | Killinumber | |
| 1813 | Killynumer (S.M.) | |