
Allen is a city in Collin County, Texas, United States, a northern suburb of Dallas. As of the 2020 United States Census, the city had a total population of 104,627.
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| Cities and towns 100k–300k | |
| Cities and towns 25k–99k |
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| Cities and towns 10k–25k | |
Municipalities and communities of Collin County, Texas, United States | ||
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| Cities | ||
| Towns | ||
| CDP | ||
| Other unincorporated communities |
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| Historical communities | ||
| Ghost towns | ||
| Footnotes | ‡This populated place also has portions in an adjacent county or counties | |
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| National | |
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