Kittitas, Washington
Demographics
Table:
Historical population

Census	Pop.	Note	%±

1920	200	—
1930	244	22.0%
1940	501	105.3%
1950	586	17.0%
1960	536	−8.5%
1970	637	18.8%
1980	782	22.8%
1990	843	7.8%
2000	1,105	31.1%
2010	1,381	25.0%
2016 (est.)	1,439	[10]	4.2%
U.S. Decennial Census[11]
2015 Estimate[3]

Based on the tabular data covering 'Kittitas, Washington' in the 'Demographics' section, produce a single-sentence summary focused on the highlighted cells and return it as JSON: {"answer": "YOUR ANSWER"}.