People choose to emigrate from the U.S. for many reasons — ideology, family, career, etc. But one of the main reasons people leave is to enjoy their retirement more. Your money can often go farther abroad and there are other benefits as well.

Read on to learn about the best countries to retire in as an expat. (For related reading, see: The Best Places Abroad to Buy a Second Home.)

Ecuador: This South American country topped the list for the 2014 Retire Overseas Index, a compilation of statistics related to qualify of life. Ecuador is an ideal location because it ranks high for both financial and personal reasons. More than 90% of respondents reported being satisfied with life in Ecuador. Many also said they see themselves staying there for the rest of their lives. While people want to retire somewhere affordable, they also want to know they won't be lonely in a foreign country (somewhere between 5,000-10,0000 American expats live in Ecuador). Another plus side to Ecuador and other Latin American countries is that it resides in a similar time zone to the U.S., which makes communicating with friends and family back home easier.

Panama: This Latin American country appeals to many expats (about 25,000 Americans) because there are lots of benefits and discounts for retirees even if you're foreign. Plus, the country is aware of its reputation as an expat retiree haven and makes special accommodations to keep that reputation. Because of its proximity to the U.S., you won't have to worry about making long flights for holidays and missing out on important events.

Malaysia: If you're looking for a more exotic locale in which to spend your golden years, try Malaysia. It's the highest ranking country for expats that's not located in South America and home to about 8,000 American expats. Like many of the countries listed above, Malaysia's low prices benefit those living on a fixed income. There's also lots of British and Australian citizens residing there, so you don't have to worry about mastering a foreign language. (For related reading, see: Retirement Travel: Doing Good and Good for You.)

Mexico: For Americans looking to retire abroad but somewhere closer to home, Mexico is a perfect choice (about 750,000 Americans agree). The cost of living is still affordable and there's less chance of a culture shock than if you moved to a country farther away. Housing is particularly cheap, as Mexico's housing market remains largely depressed from the recession.

Spain: If you love to travel, especially in Europe, Spain is a location. The country features low cost-of-living, plenty of English speakers and a culture worth exploring in depth, not to mention a high standard of healthcare services. About 63,000 Americans call Spain home.

Thailand: For people searching for a different retirement experience, they might consider Thailand. Americans are already familiar with the cuisine, and there's little risk of a huge culture shock due to significant westernization there. Beach-goers love the resort areas of Thailand, while cities like Bangkok have a distinct metropolitan flavor. About 25,000 American expats call Thailand home. (For related reading, see: Retiring Abroad: Should I Sell My Home?)

Portugal: If you want to be close to Spain but spend even less money, Portugal is a perfect pick. You can find great beaches, a lively atmosphere and culture that welcomes expats. Portugal's climate is varied; beaches and mountains are only a few hours apart. Around 2,000-3,000 U.S. expats call Portugal home.

Retiring abroad can save you money, but for many people it's more of an exciting new chapter in their lives. To get the most bang for your buck, South America is generally your best option but other countries with vibrant expat communities can be a good fit. Important factors with any major relocation are largely personal. Decide what you want and need out of your new home and tailor your research to reflect that. (For related reading, see: Retirement Abroad: 5 Unexpected Foreign Cities.)