Jefferson County, Colorado
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| Math | sir  |
|---|---|
| Enwyd ar ôl | Thomas Jefferson |
| Prifddinas | Golden, Colorado |
| Poblogaeth | 551,798 |
| Sefydlwyd |
|
| Daearyddiaeth | |
| Gwlad |  Unol Daleithiau America |
| Arwynebedd | 2,015 km² |
| Talaith | Colorado |
| Yn ffinio gyda | Boulder County, Swydd Broomfield, Adams County, Swydd Denver, Arapahoe County, Douglas County, Teller County, Park County, Clear Creek County, Gilpin County |
| Cyfesurynnau | 39.59°N 105.25°W |
 | |
Sir yn nhalaith Colorado, Unol Daleithiau America yw Jefferson County. Cafodd ei henwi ar ôl Thomas Jefferson. Sefydlwyd Jefferson County, Colorado ym 1861 a sedd weinyddol y sir (a elwir weithiau'n 'dref sirol' neu'n 'brifddinas y sir') yw Golden, Colorado.
Mae ganddi arwynebedd o 2,015 cilometr sgwâr. Allan o'r arwynebedd hwn, y canran o ffurfiau dyfrol, megis llynnoedd ac afonydd, yw 1.3% . Yn ôl cyfrifiad y wlad, poblogaeth y sir yw: 551,798 (1 Gorffennaf 2013)[1]. Mewn cymhariaeth, yn 2016 roedd poblogaeth Caerdydd yn 361,462 a Rhyl tua 26,000.[2]
Mae'n ffinio gyda Boulder County, Swydd Broomfield, Adams County, Swydd Denver, Arapahoe County, Douglas County, Teller County, Park County, Clear Creek County, Gilpin County. Cedwir rhestr swyddogol o henebion ac adeiladau cofrestredig y sir yn: National Register of Historic Places listings in Jefferson County, Colorado.
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| Map o leoliad y sir o fewn Colorado |
Lleoliad Colorado 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 y dudalen]
Mae gan y sir yma boblogaeth o tua 551,798 (1 Gorffennaf 2013)[1]. Dyma rai o'r dinasoedd, trefi neu gymunedau mwyaf poblog y sir:
Rhestr Wicidata:
| Tref neu gymuned | Poblogaeth | Arwynebedd |
|---|---|---|
| Lakewood, Colorado | 142980[3] | 114.095351[4] 114.11638[3] |
| Arvada, Colorado | 106433[3] | 101.930253[4] 92.616061[3] |
| Westminster, Colorado | 106114[3] | 88.188148[4] 87.669884[3] |
| Wheat Ridge, Colorado | 32913 30166[3] |
24.897337[4] 24.727368[3] |
| Ken Caryl, Colorado | 32438[3] | 25.196853[4] 25.265756[3] |
| Golden, Colorado | 18867[3] | 26.054262[4] 25.949414[3] |
| Evergreen, Colorado | 9038[3] | 30.056471[4] 30.047808[3] |
| Applewood, Colorado | 7160[3] | 11.672446[4] 11.522875[3] |
| Edgewater, Colorado | 5170[3] | 1.807183[4] 1.812918[3] |
| West Pleasant View, Colorado | 3932 3840[3] |
1.5 3.85925[3] |
| Genesee, Colorado | 3609[3] | 17.257058[4] 17.256844[3] |
| Kittredge, Colorado | 954 1304[3] |
4.880864[4] 4.880863[3] |
| Indian Hills, Colorado | 1197 1280[3] |
14.075246[4] 12.118058[3] |
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Cyfeiriadau[golygu | golygu cod y dudalen]
- ↑ 1.0 1.1 Biwro Cyfrifiad yr Unol Daleithiau; http://www.census.gov/popest/data/counties/totals/2013/files/CO-EST2013-Alldata.csv.
- ↑ 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 3.15 3.16 3.17 3.18 3.19 3.20 3.21 3.22 3.23 3.24 3.25 https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.2010.html
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 2016 U.S. Gazetteer Files