Demographics
| Historical populations | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1860 | 3,082 |
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| 1870 | 7,022 | 127.8% | |
| 1880 | 11,303 | 61.0% | |
| 1890 | 13,509 | 19.5% | |
| 1900 | 19,507 | 44.4% | |
| 1910 | 27,640 | 41.7% | |
| 1920 | 23,509 | −14.9% | |
| 1930 | 21,391 | −9.0% | |
| 1940 | 19,874 | −7.1% | |
| 1950 | 18,187 | −8.5% | |
| 1960 | 16,369 | −10.0% | |
| 1970 | 15,043 | −8.1% | |
| 1980 | 15,654 | 4.1% | |
| 1990 | 14,638 | −6.5% | |
| 2000 | 14,385 | −1.7% | |
| 2010 | 13,371 | −7.0% | |
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Read more about this topic: Allen County, Kansas