You will have to cobble that big picture of data together using several smaller sources. Both Las Vegas and Clark County recommend consulting the U.S. Melissadata.com, which can help you find home prices, schools, and crime statistics. (You can also type in an address and check Metro's crimemapping.com feature to see the history in and around a particular neighborhood.) Aerial maps, property valuations and zoning can be found through the Clark County assessor’s website.
On the Clark County website click on "Departments," then on "Comprehensive Planning Dept.", then drag on "Divisions," and click Demographics on the drop-down menu. This contains numerous PDFs covering topics such as the "Population Element Report," "Occupied Housing Units by Zip Code" and "Historic Housing Vacancy Rates."
The City of Las Vegas also hosts a demographic breakdown by ward on its website. "Lots of stuff on this page," warns city spokesman Jace Radke, "but if you scroll down to the Planning Department brochures you will find stats broken down by ward."
The Clark County School District has a search engine which determines which school your child should attend. It also provides boundary maps for elementary, middle-school and high school attendance, along with suggested commuting routes. Churches and stores are best located by running Google Map parameters like "Episcopal Churches Las Vegas" or "Macy’s Las Vegas" or "Smith's Las Vegas." DowntownVegas.com is a website specifically aimed at locals, rather than tourists, and is a useful resource for all kinds of information, including business services, transportation, residential options, upcoming events, maps, and more.
Hopefully that's enough to get you started; you'll also find there are myriad newsletters you can sign up for and Twitter feeds you can follow for information about everything from current job openings, to the schedules for area farmers markets (there's one every day somewhere in the valley!), to casino offers geared specifically to locals (e.g., mgmresorts.com/locals/).