Question: What is the population of the city where Andrew Jackson Zilker was politically active ?

Context articles: Andrew Jackson Fundamental Magnet High School
Lyncoya Jackson
Zilker Park
Austin, Texas
Fulvia
Political activism in Kerala
Andrew Jackson Zilker
Andrew Jackson Centre
Germain Metternich
Curvilinear disparity

Andrew Jackson Fundamental Magnet High School, commonly nicknamed "A.J.", "Andrew Jackson", or "Andrew Jackson High School", was a public magnet high school in Chalmette in the area of St. Bernard Parish, Louisiana, United States.
 It is a part of St. Bernard Parish Public Schools.
Lyncoya Jackson (c. 1811 – July 1, 1828) was the second adopted son of American President Andrew Jackson and his wife Rachel Jackson.
 Born to Creek (Muscogee/Red Stick) parents, he was orphaned during the Creek War following the Battle of Tallushatchee.
 Lyncoya was brought to the Jackson home, The Hermitage, in 1813.
 Lyncoya was brought to Jackson after the surviving women in the village refused to care for him.
 Jackson took pity on the orphan, writing that he felt an "unusual sympathy" for the child, perhaps because of Jackson's own past as an orphan.
 Lyncoya was educated along with Andrew Jackson's first adopted son, Andrew Jackson Jr., and Jackson even had aspirations to send him to the American military academy, West Point, but this proved impossible.
 Instead, Lyncoya was apprenticed to be a saddle maker until he died of tuberculosis in 1828.
Zilker Metropolitan Park is a recreational area in south Austin, Texas at the juncture of Barton Creek and the Colorado River that comprises over 350 acre of publicly owned land.
 It is named after its benefactor, Andrew Jackson Zilker, who donated the land to the city in 1917.
 The land was developed into a park during the Great Depression in the 1930s.
 Today the park serves as a hub for many recreational activities and the hike and bike trail around Lady Bird Lake, both of which run next to the park.
 The large size of the park makes it a capable venue for large scale events such as the Austin City Limits Music Festival and the Zilker Park Kite Festival.
 The park was listed in the National Register of Historic Places on 1997.
Austin ( , ) is the capital of the U.S. state of Texas and the seat of Travis County, with portions extending into Hays and Williamson counties.
 It is the 11th-most populous city in the United States and the 4th most populous city in Texas.
 It is the fastest growing large city in the United States and the second most populous state capital in the U.S after Phoenix, Arizona.
 As of the U.S. Census Bureau's July 1, 2016 estimate, Austin has a population of 947,890.
 Located in Central Texas in the foothills of Texas Hill Country, the city is home to numerous lakes, rivers, and waterways including Lady Bird Lake, Barton Springs, McKinney Falls, the Colorado River, Lake Travis, and Lake Walter E. Long.
 It is the cultural and economic center of the Austin–Round Rock metropolitan area, which had an estimated population of 2,056,405 as of July 1, 2016.
 It is the most populous state capital in the U.S that isn't the most populous city in a state.
Fulvia (c. 83 BC – 40 BC) was an aristocratic Roman woman who lived during the Late Roman Republic.
 She gained access to power through her marriage to three of the most promising men of her generation, Publius Clodius Pulcher, Gaius Scribonius Curio, and Marcus Antonius.
 All three husbands were politically active "populares", tribunes, and supporters of Julius Caesar.
 Though she is more famous for her involvement in Antony's career, many scholars believe that she was politically active with all of her husbands.
Kerala is a politically active society, with a politically active and aware population.
Andrew Jackson Zilker (1858–1934) was a political figure and philanthropist in Austin, Texas, after whom Zilker Park was named.
 He was the last private owner of Barton Springs.
The Andrew Jackson Centre, also known as the Andrew Jackson Cottage, is the ancestral home of Andrew Jackson, 7th President of the United States.
 It is located in the village of Boneybefore in County Antrim, Northern Ireland.
Germain Franz Metternich (* 5 April 1811 in Mainz; † 13 May 1862 on Tybee Island, Georgia) was the son of Mathias Metternich, one of the leading Mainz Jacobins. Metternich pursued a military career initially, but became involved with the German democratic movement in the southern states of the German Confederation from the beginning of the 1830s onward.
 He participated in the Hambacher Fest and later in the campaigns of the Revolutions of 1848 in the German states.
 In 1850 he immigrated to the United States as part of a larger wave of politically active Forty-Eighters, following the defeat of that movement in continental Europe, and remained politically active in his new, democratic homeland.
 Because of this background, he was particularly concerned with the struggle for of human rights and became involved with both the socialist and the abolitionist movements.
 At the beginning of the American Civil War he joined the Union Army.
 He was killed in 1862 by a drunken fellow soldier.
The Special Law of Curvilinear Disparity is a theory, put forward by the political scientist John D. May, which posits that the rank and file members of a political party tend to be more ideological than both the leadership of that party and its voters.
 May contends that politically active people can be classified into three major strata or echelons according to their relative status within a party.
 Members of these divergent strata have contrasting motivations for being politically active and calibrate their ideological stances to differing extents as a result.