title: Friend, Nebraska
paragraph_text: As of the census of 2000, there were 1,174 people, 475 households, and 326 families residing in the city. The population density was 1,473.4 people per square mile (566.6/km²). There were 516 housing units at an average density of 647.6 per square mile (249.0/km²). The racial makeup of the city was 98.64% White, 0.26% Native American, 0.34% from other races, and 0.77% from two or more races. Hispanic or Latino of any race were 0.85% of the population.
title: Harrisburg, South Dakota
paragraph_text: As of the census of 2010, there were 4,089 people, 1,423 households, and 1,133 families residing in the city. The population density was 1,648.8 inhabitants per square mile (636.6/km2). There were 1,507 housing units at an average density of 607.7 per square mile (234.6/km2). The racial makeup of the city was 96.8% White, 0.5% African American, 0.2% Native American, 0.3% Asian, 0.2% from other races, and 2.0% from two or more races. Hispanic or Latino of any race were 1.3% of the population.
title: Panora, Iowa
paragraph_text: As of the census of 2010, there were 1,124 people, 460 households, and 286 families residing in the city. The population density was 624.4 inhabitants per square mile (241.1/km2). There were 522 housing units at an average density of 290.0 per square mile (112.0/km2). The racial makeup of the city was 98.5% White, 0.2% African American, 0.4% Asian, 0.1% from other races, and 0.9% from two or more races. Hispanic or Latino of any race were 1.4% of the population.
title: Melbourne
paragraph_text: After a trend of declining population density since World War II, the city has seen increased density in the inner and western suburbs, aided in part by Victorian Government planning, such as Postcode 3000 and Melbourne 2030 which have aimed to curtail urban sprawl. According to the Australian Bureau of Statistics as of June 2013, inner city Melbourne had the highest population density with 12,400 people per km2. Surrounding inner city suburbs experienced an increase in population density between 2012 and 2013; Carlton (9,000 people per km2) and Fitzroy (7,900).
title: Elk Point, South Dakota
paragraph_text: As of the census of 2010, there were 1,963 people, 770 households, and 505 families residing in the city. The population density was 1,443.4 inhabitants per square mile (557.3/km2). There were 830 housing units at an average density of 610.3 per square mile (235.6/km2). The racial makeup of the city was 97.0% White, 0.3% African American, 0.6% Native American, 0.2% Asian, 0.8% from other races, and 1.2% from two or more races. Hispanic or Latino of any race were 1.5% of the population.
title: Tammy Leitner
paragraph_text: Tamara Leitner (born July 3, 1972 in San Diego, California) is an investigative TV reporter and former reality television contestant.
title: Bowling Green, Missouri
paragraph_text: As of the census of 2000, there were 3,260 people, 1,290 households, and 798 families residing in the city. The population density was 1,677.0 people per square mile (648.8/km²). There were 1,420 housing units at an average density of 730.5 per square mile (282.6/km²). The racial makeup of the city was 90.64% White, 7.67% African American, 0.12% Native American, 0.18% Asian, 0.21% from other races, and 1.17% from two or more races. Hispanic or Latino of any race were 0.74% of the population.
title: Dow City, Iowa
paragraph_text: As of the census of 2010, there were 510 people, 219 households, and 137 families residing in the city. The population density was 1,593.8 inhabitants per square mile (615.4/km2). There were 242 housing units at an average density of 756.3 per square mile (292.0/km2). The racial makeup of the city was 93.1% White, 0.2% Native American, 6.1% from other races, and 0.6% from two or more races. Hispanic or Latino of any race were 9.0% of the population.
title: Seattle
paragraph_text: In recent years, the city has experienced steady population growth, and has been faced with the issue of accommodating more residents. In 2006, after growing by 4,000 citizens per year for the previous 16 years, regional planners expected the population of Seattle to grow by 200,000 people by 2040. However, former mayor Greg Nickels supported plans that would increase the population by 60%, or 350,000 people, by 2040 and worked on ways to accommodate this growth while keeping Seattle's single-family housing zoning laws. The Seattle City Council later voted to relax height limits on buildings in the greater part of Downtown, partly with the aim to increase residential density in the city centre. As a sign of increasing inner-city growth, the downtown population crested to over 60,000 in 2009, up 77% since 1990.
title: Onamia, Minnesota
paragraph_text: As of the census of 2010, there were 878 people, 349 households, and 167 families residing in the city. The population density was 914.6 inhabitants per square mile (353.1/km2). There were 398 housing units at an average density of 414.6 per square mile (160.1/km2). The racial makeup of the city was 83.0% White, 2.3% African American, 9.9% Native American, 0.7% Asian, 0.3% from other races, and 3.8% from two or more races. Hispanic or Latino of any race were 1.7% of the population.
title: Geneva, Nebraska
paragraph_text: As of the census of 2000, there were 2,226 people, 957 households, and 618 families residing in the city. The population density was 1,486.5 people per square mile (573.0/km²). There were 1,050 housing units at an average density of 701.2 per square mile (270.3/km²). The racial makeup of the city was 99.01% White, 0.04% African American, 0.27% Native American, 0.45% from other races, and 0.22% from two or more races. Hispanic or Latino of any race were 0.81% of the population.
title: Nagasaki
paragraph_text: On August 9, 1945 the population was estimated to be 263,000. As of 1 March 2017, the city had population of 425,723 and a population density of 1,000 persons per km2.
title: Guam
paragraph_text: Guam (i/ˈɡwɑːm/ or /ˈɡwɒm/; Chamorro: Guåhån;[needs IPA] formally the Territory of Guam) is an unincorporated and organized territory of the United States. Located in the northwestern Pacific Ocean, Guam is one of five American territories with an established civilian government. The capital city is Hagåtña, and the most populous city is Dededo. In 2015, 161,785 people resided on Guam. Guamanians are American citizens by birth. Guam has an area of 544 km2 (210 sq mi) and a density of 297/km² (770/sq mi). It is the largest and southernmost of the Mariana Islands, and the largest island in Micronesia. Among its municipalities, Mongmong-Toto-Maite has the highest density at 1,425/km² (3,691/sq mi), whereas Inarajan and Umatac have the lowest density at 47/km² (119/sq mi). The highest point is Mount Lamlam at 406 meters (1,332 ft) above sea level.
title: San Diego
paragraph_text: As of the Census of 2010, there were 1,307,402 people living in the city of San Diego. That represents a population increase of just under 7% from the 1,223,400 people, 450,691 households, and 271,315 families reported in 2000. The estimated city population in 2009 was 1,306,300. The population density was 3,771.9 people per square mile (1,456.4/km2). The racial makeup of San Diego was 45.1% White, 6.7% African American, 0.6% Native American, 15.9% Asian (5.9% Filipino, 2.7% Chinese, 2.5% Vietnamese, 1.3% Indian, 1.0% Korean, 0.7% Japanese, 0.4% Laotian, 0.3% Cambodian, 0.1% Thai). 0.5% Pacific Islander (0.2% Guamanian, 0.1% Samoan, 0.1% Native Hawaiian), 12.3% from other races, and 5.1% from two or more races. The ethnic makeup of the city was 28.8% Hispanic or Latino (of any race); 24.9% of the total population were Mexican American, and 0.6% were Puerto Rican.
title: Leitner system
paragraph_text: The Leitner system is a widely used method of efficiently using flashcards that was proposed by the German science journalist Sebastian Leitner in the 1970s. It is a simple implementation of the principle of spaced repetition, where cards are reviewed at increasing intervals.
title: New York City
paragraph_text: In 2014, the city had an estimated population density of 27,858 people per square mile (10,756/km²), rendering it the most densely populated of all municipalities housing over 100,000 residents in the United States; however, several small cities (of fewer than 100,000) in adjacent Hudson County, New Jersey are more dense overall, as per the 2000 Census. Geographically co-extensive with New York County, the borough of Manhattan's population density of 71,672 people per square mile (27,673/km²) makes it the highest of any county in the United States and higher than the density of any individual American city.
title: Fontanelle, Iowa
paragraph_text: As of the census of 2010, there were 672 people, 304 households, and 164 families residing in the city. The population density was 700.0 inhabitants per square mile (270.3/km2). There were 336 housing units at an average density of 350.0 per square mile (135.1/km2). The racial makeup of the city was 99.7% White, 0.1% from other races, and 0.1% from two or more races. Hispanic or Latino of any race were 0.6% of the population.
title: Browns Valley, Minnesota
paragraph_text: As of the census of 2000, there were 690 people, 285 households, and 171 families residing in the city.  The population density was 878.5 people per square mile (337.2/km²).  There were 317 housing units at an average density of 403.6 per square mile (154.9/km²).  The racial makeup of the city was 82.61% White, 15.80% Native American, 0.43% Asian, 0.14% Pacific Islander, 0.14% from other races, and 0.87% from two or more races. Hispanic or Latino of any race were 1.74% of the population.
title: Oklahoma City
paragraph_text: As of the 2010 census, there were 579,999 people, 230,233 households, and 144,120 families residing in the city. The population density was 956.4 inhabitants per square mile (321.9/km²). There were 256,930 housing units at an average density of 375.9 per square mile (145.1/km²).
title: Population density
paragraph_text: Cities with high population densities are, by some, considered to be overpopulated, though this will depend on factors like quality of housing and infrastructure and access to resources. Most of the most densely populated cities are in Southeast Asia, though Cairo and Lagos in Africa also fall into this category.

Question: What was the population density of Tammy Leitner's city of birth in 2009?

Question decomposition:
question: What was Tammy Leitner's city of birth?
answer: San Diego
question: What was the population density of #1 in 2009?
answer: 3,771.9 people per square mile (1,456.4/km2)

Answer: 3,771.9 people per square mile (1,456.4/km2)