For gas, let's assume you drive 1,000 miles a month and your car averages 23 miles per gallon. You'd need to budget about $87 per month with prices at $2 per gallon. That leaves only $124 for a car payment, parking and other transportation expenses.
North Dakota grew the fastest, increasing its population by 2.2 percent in the same time span. Colorado increased 1.9 percent. From 2010 to 2015, Colorado grew by 408,320 people, a 7.5 percent increase and the fourth-fastest growth rate behind North Dakota, Washington D.C. and Texas.
With 314,638 people, Douglas County is the 7th most populated county in the state of Colorado out of 64 counties. But watch out, Douglas County, because Boulder County with 313,333 people and Weld County with 277,670 people are right behind you.