Like other cities in Florida, the Orlando market saw tremendous demand from investors during the first half of the previous decade. Some were looking to cash in on the appreciating market through short-term property flipping, while others were buying properties for vacation homes.

Although the market attracted interest from buyers in the Midwest and Northeast, condo developers also marketed developments specifically to foreign buyers, particularly in the United Kingdom, says Jack McCabe, CEO of McCabe Research & Consulting.

“It’s almost like [the British] were setting up another colony in the United States,” McCabe says. Abetted by easy credit, such demand helped send home prices surging by more than 102 percent from 2002 to the market’s peak in 2006. But the subsequent crash has been painful.

The nearly 48 percent drop from the peak through the third quarter of 2009 has pulled 58 percent of single-family home mortgages in Orlando underwater, according to Zillow. And McCabe isn’t optimistic about a quick rebound. “For the condo or condo conversion owner, literally they may carry them out feet first before they ever see that property reach 2006 values,” he says.

Greeley, Colo.

With 45 percent of single-family mortgages underwater, the Greeley, Colo., market has among the higher concentrations of negative equity in the nation. The predicament is rooted in an increase in smaller homes built during the first half of the previous decade that were purchased with risky, subprime mortgages, says Randy Moser, the president of the Greeley Area Realtor Association.

“If you had a 550 credit score, you could maybe even get 110 percent financing [and] roll in your closing costs,” he says. But after many of these buyers began falling behind on their payments, area foreclosures surged, and home prices fell about 15 percent through the third quarter of 2009. “We were probably one of the first counties in the United States that went into the foreclosure mess,” Moser says.

Bend, Ore.

From 2002 to early 2007, home prices in Bend, Ore., jumped by 99 percent, as second-home buyers and retirees were drawn to this community. But after the housing bubble popped and economy eroded, home prices have slumped some 32 percent through the third quarter of 2009. “We are seeing homes that people bought for $2.5 million now selling for under $1 million,” says Kathy Ragsdale, the CEO of the Central Oregon Association of Realtors.

Ragsdale says the initial phase of the downturn was triggered by evaporating demand from second-home buyers. But more recently, as unemployment has surged, many residents have found themselves unable to make their mortgage payments. Today, more than half of the residential property transactions in Bend are distressed sales, Ragsdale says.

“It’s huge when somebody stands up in a meeting and says, ‘I have a home for sale, and by the way, it’s not a short sale,’ ” she says. As of the fourth quarter of last year, roughly 41 percent of single-family home mortgages were underwater, according to Zillow.

Minneapolis-St. Paul

Although this area is far removed from the cities most closely associated with the housing bubble, home prices in Minneapolis-St. Paul inflated significantly in the early part of the previous decade. Real estate values increased nearly 34 percent from 2002 to 2006. Brad Fisher, the president of the Minneapolis Area Association of Realtors, says subprime lending played a key role.

“Outside of the coasts, the Minneapolis-St. Paul area was one of the higher areas [of] subprime loans,” Fisher says. “We have paid a price because of that.” The subsequent 29 percent price decline through the third quarter of 2009 pulled nearly 39 percent of single-family home mortgages underwater by the fourth quarter of 2009, according to Zillow.

Memphis

Home prices in Memphis didn’t surge as aggressively as other markets during the boom. But pockets of subprime mortgages–coupled with a modest slump in prices over the past three years–have created a notable concentration of negative equity. Real estate values increased about 12 percent from 2002 to 2006, but prices then fell nearly 18 percent through the third quarter of 2009.

And as of the fourth quarter of last year, roughly a third of all single-family home mortgages were underwater, according to Zillow. Glenn Moore, the president of the Memphis Area Association of Realtors, argues that the negative equity is concentrated in a small part of the overall market. “It is limited to mostly suburban areas and maybe some areas where there was maybe some predatory lending going on,” Moore says.

Cleveland

Home prices in Cleveland increased 13 percent from 2002 to 2006 but then fell nearly 16 percent through the third quarter of 2009. “There was a little bit of overinvestment in housing, and the economy started weakening,” says Celia Chen of Moody’s Economy.com. “[Cleveland] entered recession before the rest of the U.S., and I think weak economic conditions have pulled down home prices.”

Exposure to subprime lending has also played a role in the real estate market’s decline. Roughly 32 percent of single-family home mortgages were underwater as of the fourth quarter of last year, according to Zillow.

Grand Rapids, Mich.

Real estate values in Grand Rapids, Mich., increased 15 percent from 2002 to 2005 and then fell about 13 percent through the third quarter of last year. As of the fourth quarter of 2009, roughly 29 percent of single-family home mortgages were underwater, according to Zillow. The weakness in the housing market is linked to the area’s deteriorating economy, Chen says.

All of this could influence your financial freedom—not to mention the number of junk-mail solicitations you receive.

Ken Lin, CEO of Credit Karma, a credit-score information website, knew he had a good credit score. But when he recently applied for a new credit card, he was rejected: The lender had flagged him as a higher credit risk because the value of his California home had declined and his mortgage principal wasn’t declining—giving away that he has an interest-only mortgage.

“It’s a lot more than just your credit score today,” he says.

Your credit record still matters, of course. But here are some newer ways lenders and financial-services companies are sizing up your financial behavior and credit-worthiness:

Bank-Depositor Behavior Scores

Fair Isaac, the creator of the widely used FICO (NYSE: FICO – News) credit score, is marketing bank-depositor behavior scores, which are used by banks to assess their own customers.

The scores are based on balances, deposit records and withdrawal activity, says Debb Gordon, a senior principal consultant at Fair Isaac.

Unlike credit scores—which are most affected after payments are late or credit is maxed out—behavior scores can be a leading indicator of credit risk. They also can help banks identify which of their customers might be ripe for additional services and rewards programs and which might need special attention because, for instance, their direct deposits had stopped.

Income Estimation

This business took off earlier this year after the Federal Reserve allowed lenders to use credit bureaus’ income estimates to satisfy new requirements that credit-card applicants show the ability to pay their debts.

The bureaus use credit-record information, such as the size of your credit lines and the age and size of your mortgage, and plug it into models to predict your earnings. Those estimates also may be used to double-check the income you report on credit applications or to determine if you should be preapproved for credit.

You can’t see those estimates. But if you are denied credit because of them, you must be given a chance to provide additional information.

Rent Payments

An estimated 40 million consumers, including young people and people who prefer to pay in cash, have too little credit experience to generate a useful credit score. But they are likely to pay rent or utility bills, which could help credit bureaus better assess their credit-worthiness.

Experian, one of the three major credit bureaus, bought RentBureau—which collects rental-payment data from large property managers—and expects to integrate that information into credit records before the end of the year.

Even if those consumers don’t want credit, that information could help them win better rates from insurers, which may use insurance scores based on credit records, and fatten up thin credit files, which some employers check before making hiring decisions.

Credit bureaus say they also would like to offer data on cellphone payments, but have run into concerns over privacy issues, which may require legislation to untangle.

Collection Triggers

If you owe money, you can run, but you can’t hide. Credit bureaus can now send daily reports to collection companies when a debtor’s financial status changes—say, if new employment information appears or if a debt starts to decline. A drop in credit use would indicate that the consumer has more capacity to pay and a better chance of repaying other outstanding debts.

Home Values

As home values have plummeted and foreclosures have soared in many states, lenders of all stripes have become more cautious, as Mr. Lin found. Using home values as a factor in credit decisions doesn’t appear to be widespread, but it may come into play when someone in, say, Nevada or California applies for a new loan. Of course, it also could work in your favor if you are one of the roughly 25 million Americans who owns a home outright.

Your Wealth

Information about your assets other than homes and cars, which aren’t part of the credit record, may soon play a bigger role in your financial life. With a better sense of a consumer’s balance sheet, lenders might be able to target potential customers better and also have a fuller sense of their likely risk. Equifax, another of the big three credit bureaus, offers financial-service providers an estimate of liquid wealth as part of a financial “suite” of information.

As all of this becomes a widespread practice, those who are prompt and careful in all aspects of their financial life may have more options—and those who have been sloppy with, say, their bank accounts may be penalized for that.

Whether you’re obsessing over your FICO score or your Beacon score, you’re likely shopping for credit. The FICO score was developed by Fair Isaac & Co., which began credit scoring in the late 1950s.

The point of the score is consolidate your credit profile into a single number. The Beacon score is a brand name used by Equifax, the largest credit-reporting agency. While Fair, Isaac & Co. and the credit bureaus do not reveal how these scores are computed, whether you get a loan or not is a numbers game: The morapplye points you score on your credit app, the better you do.

There’s a reason you have to fill out so much information when you’re applying for credit. Everything counts. Your age, your address, and even your telephone number all have a role to play in whether or not you’ll get credit.

Young ‘uns and old folk are at a disadvantage since under 21 and over 65 likely means you aren’t working; no points for you. If you’re married, you’ll get a point for being “stable.” And while you might think that being divorced would work against you (all that spousal and child support), most creditors don’t give a whit.

No dependents? Zero points. You’re probably still gallivanting like a teenager since you haven’t yet “settled down.” One to three dependents? Score one point. You’re a solid citizen. More than three dependents? Score zero. Have you no self control! And don’t you know you that with all those mouths to feed you could get in debt over your head?

Your home address counts too. Live in a trailer park or with your parents? Bad risk, score zero points. You could skip town with nary a look over your shoulder. Rent an apartment? Give yourself one point.

Own a home with a big fat mortgage and you’ll score major points since someone has already done some checking and you qualified for a mortgage. Own your home free and clear? Even better. You’ve proven you can pay off a sizable debt and now you have a pile of equity that the card company would love to help you spend.

Previous Residence? Zero to five years (some applications only go to three years), score zero points since you move around too much. No land-line: zero points. How the Dickens are they gonna find you when you fall behind in payments. Since they can’t use your cell phone to actually locate you physically, it doesn’t count.

Less then one year at your present employer earns you no points. Again, it’s a stability and earning continuity thing. The longer you’re on the job, the more likely you are to be bored out of your mind but you’ll score more points. And, not to overstate the obvious, the more you make the better.

The more willing you are to make your lender rich, the higher your score will be. Since the FICO score was originally designed to measure customer profitability, if you pay off your balance in full every month, you’re going to score lower than the guy who only makes the minimum payment and pays huge amounts of interest.

Scores range from 300 to 900 and if you manage to hit 750 or above you’ll qualify for the best rates and terms. Score 620 or lower and you’ll pay premium interest if you even qualify; 620 is the absolute minimum credit score for insured mortgages.

Your credit score can change quickly. Payment history accounts for about 35% of your credit score and just one negative report can drop your pristine score into the doldrums. Since scores are updated monthly, your bad behaviour won’t go unpunished for long.

The type of credit you have counts for about 10% of your score. And your current level of indebtedness accounts for about 30% so going too close to your credit limit is another way to deflate your score. One rule of thumb is to keep your balances below the 65% mark. So if you have a limit of $1,000, you won’t ever carry a balance that’s more than $650.

Having too much credit available can also hurt your ability to borrow since the more credit you have, the more trouble you can get yourself into. If you’ve got a walletful of cards, canceling credit you’re not using can be a good thing – for both you and your credit score – over the long haul.

Careful though. If the card you’re eliminating is one with a long, positive history, you’ll eliminate what could be a very good record of your repayment when you cancel the card. You’d be better off cutting up the card so you aren’t tempted to use it, while you establish a track record (six months or more) before you actually cancel the account.

Credit shopping can also cost you points. Since about 10% of your credit score relates to the number and frequency of new credit enquiries, applying willy nilly for new credit will end up costing you.

However, it’s only when a lender checks your score that this registers on your score. Checking your own credit report/score is considered a “soft” inquiry and does not go against your score.