As of the census of 2010, there were 516,564 people, 140,602 households, and 114,350 families residing in the county. The population density was 259 people per square mile (100/km²).  There were 148,350 housing units, at an average density of 74 per square mile (29/km²). The countys racial makeup was 89.4% Race (United States Census), 0.5% Black or African American, 0.6% American Indian or Alaska Native, 1.4% Asian, 0.8% Native Hawaiian or other Pacific Islander, 4.6% some other race, and 2.7% from two or more races. 10.8% of the population were Hispanic or Latino of any race.

How many more people are there than families?
A: 402214

Coming off their dominating home win over the Chiefs, the Broncos flew to Reliant Stadium for a Thursday night intraconference duel with the Houston Texans.  In the first quarter, Denver trailed early as QB Sage Rosenfels got a 5-yard TD run for the only score of the period.  In the second quarter, the Broncos would get on the board as kicker Jason Elam managed to get a 41-yard field goal.  Houston would respond with kicker Kris Brown getting a 41-yard field goal.  Denver would end the half with Elam nailing a 47-yard field goal. In the third quarter, the Texans would increase their lead as RB Ron Dayne managed to get a 6-yard TD run.  The Broncos would respond with QB Jay Cutler completing a 12-yard TD pass to TE Tony Scheffler.  However, in the fourth quarter, Houston sealed the win as Rosenfels completed a 4-yard TD pass to WR Andre Johnson, while FB Vonta Leach got a 1-yard TD run.

How many more touchdowns did Texans score over Broncos?
A: 3

As of the census of 2000, there were 325,957 people, 149,937 households, and 94,460 families residing in the county.  The population density was 570 people per square mile (220/km2).  There were 182,467 housing units at an average density of 319 per square mile (123/km2).  The racial makeup of the county was 92.65% Race (United States Census), 4.18% Race (United States Census) or Race (United States Census), 0.22% Race (United States Census), 0.77% Race (United States Census), 0.03% Race (United States Census), 1.14% from Race (United States Census), and 1.02% from two or more races.  4.34% of the population were Race (United States Census) or Race (United States Census) of any race. 89.7% spoke only English language at home; 4.4% spoke Spanish language, 1.3% German language, and 1.0% French language at home.

How many people in population density according to the census of 2000 would there be within 3 square miles?
A:
1710