Matherville, Illinois
Demographics
Table:
Historical population

Census	Pop.	Note	%±

1920	886	—
1930	399	−55.0%
1940	565	41.6%
1950	590	4.4%
1960	612	3.7%
1970	699	14.2%
1980	793	13.4%
1990	708	−10.7%
2000	772	9.0%
2010	723	−6.3%
2016 (est.)	673	[2]	−6.9%
U.S. Decennial Census[5]

Per the details in the table information on 'Matherville, Illinois' (see 'Demographics'), formulate a single-sentence overview of the highlighted cells and format it within the following JSON object {"answer": "YOUR ANSWER"}.