Plum Grove, Texas, a City, in Liberty County and has a 2020 population of 753 citizen, it is the 886th largest city in Texas and the 11568th largest city in the United States. Plum Grove is currently growing at a rate of 3.72% annually and its population has increased by 25.50% since the most recent census, which recorded a population of 600 in 2010. Spanning over 4 miles, Plum Grove has a population density of 201 people per square mile.  Plum Grove is at the junction of Farm roads 2090 and 1010, forty miles northeast of Houston in northwestern Liberty County. It was incorporated by a 55–7 vote in December 1968 and secured a voting precinct 5½ years later.
The average household income in Plum Grove is $63,730 with a poverty rate of 1.66%. The median rental costs in recent years comes to $950 per month, and the median house value is $142,000. The median age in Plum Grove is 36.1 years, 33.4 years for males, and 41.9 years for females. For every 100 females there are 113.0 males.


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