Jefferson County, Pennsylvania
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| Math | sir  |
|---|---|
| Enwyd ar ôl | Thomas Jefferson |
| Prifddinas | Brookville |
| Poblogaeth | 44,492 |
| Sefydlwyd |
|
| Daearyddiaeth | |
| Gwlad |  Unol Daleithiau |
| Arwynebedd | 1,701 km² |
| Talaith | Pennsylvania |
| Yn ffinio gyda | Forest County, Elk County, Clearfield County, Indiana County, Armstrong County, Clarion County |
| Cyfesurynnau | 41.13°N 79°W |
 | |
Sir yn nhalaith Pennsylvania, Unol Daleithiau America yw Jefferson County. Cafodd ei henwi ar ôl Thomas Jefferson. Sefydlwyd Jefferson County, Pennsylvania ym 1830 a sedd weinyddol y sir (a elwir weithiau'n 'dref sirol' neu'n 'brifddinas y sir') yw Brookville.
Mae ganddi arwynebedd o 1,701 cilometr sgwâr. Allan o'r arwynebedd hwn, y canran o ffurfiau dyfrol, megis llynnoedd ac afonydd, yw 0.7% . Yn ôl cyfrifiad y wlad, poblogaeth y sir yw: 44,492 (1 Ebrill 2020)[1]. Mewn cymhariaeth, yn 2016 roedd poblogaeth Caerdydd yn 361,462 a Rhyl tua 26,000.[2]
Mae'n ffinio gyda Forest County, Elk County, Clearfield County, Indiana County, Armstrong County, Clarion County. Cedwir rhestr swyddogol o henebion ac adeiladau cofrestredig y sir yn: National Register of Historic Places listings in Jefferson County, Pennsylvania.
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| Map o leoliad y sir o fewn Pennsylvania |
Lleoliad Pennsylvania o fewn UDA |
Ceir sawl sir o’r un enw gan gynnwys:
- Jefferson County, Alabama
- Jefferson County, Arkansas
- Jefferson County, Colorado
- Jefferson County, Efrog Newydd
- Jefferson County, Florida
- Jefferson County, Georgia
- Jefferson County, Gorllewin Virginia
- Jefferson County, Idaho
- Jefferson County, Illinois
- Jefferson County, Indiana
- Jefferson County, Iowa
- Jefferson County, Kansas
- Jefferson County, Kentucky
- Jefferson County, Mississippi
- Jefferson County, Missouri
- Jefferson County, Montana
- Jefferson County, Nebraska
Trefi mwyaf
[golygu | golygu cod]Mae gan y sir yma boblogaeth o tua 44,492 (1 Ebrill 2020)[1]. Dyma rai o'r dinasoedd, trefi neu gymunedau mwyaf poblog y sir:
Rhestr Wicidata:
| Tref neu gymuned | Poblogaeth | Arwynebedd |
|---|---|---|
| Brookville | 3995[3] | 3.23 square mile 8.345651 cilometr sgwâr |
| Winslow Township | 2546[3] | 45.5 square mile |
| Snyder Township | 2370[3] | 41.8 square mile |
| Bell Township | 2010[3] | 18.8 square mile |
| Henderson Township | 1940[3] | 22 square mile |
| Washington Township | 1892[3] | 47.8 square mile |
| Young Township | 1711[3] | 15.5 square mile |
| Warsaw Township | 1368[3] | 51.3 square mile |
| Pine Creek Township | 1323[3] | 28.5 square mile |
| Eldred Township | 1271[3] | 46.6 square mile |
| Perry Township | 1248[3] | 28.7 square mile |
| Rose Township | 1156[3] | 19.1 square mile |
| McCalmont Township | 1137[3] | 26.3 square mile |
| Knox Township | 1011[3] | 31.2 square mile |
| Oliver Township | 1000[3] | 30.4 square mile |
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Cyfeiriadau
[golygu | golygu cod]- ↑ 1.0 1.1 https://data.census.gov/cedsci/table?t=Populations%20and%20People&g=0100000US,%241600000&y=2020. Cyfrifiad yr Unol Daleithiau 2020. golygydd: Biwro Cyfrifiad yr Unol Daleithiau. dyddiad cyrchiad: 1 Ionawr 2022.
- ↑ statswales.gov.wales; adalwyd 25 Mawrth 2020.
- ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 https://data.census.gov/cedsci/table?t=Populations%20and%20People&g=0100000US,%241600000&y=2020