What does DMA stand for? In marketing and media it most often stands for Designated Market Area, a geographic region where people receive the same local TV and radio stations. Ad buyers use these regions to decide where a campaign runs, and the United States is split into roughly 210 of them.
Outside advertising the letters change meaning. Computer engineers mean direct memory access, tech policy reporters may mean a European law on large online platforms, and music schools award the DMA degree. The table below sorts them out.
Quick facts
Stands for (marketing)
Designated Market AreaStands for (computers)
Direct memory accessOther meanings
Digital Markets Act, Doctor of Musical Arts, direct market accessType
InitialismHow to say it
D M AUsed in
Ad plans, TV ratings, hardware specs, policy news
What does DMA stand for in marketing?
A Designated Market Area is a group of counties served by the same set of local broadcast stations. Every county in the country belongs to exactly one DMA, so the regions cover the whole map without overlapping. They are usually named for their main city or cities, such as a market named after a large metro and its nearby towns.
Marketers like DMAs because they match how people actually watch local TV and hear local radio. If you run a regional sale, you can buy ads in the two or three DMAs where your stores are and skip the rest of the country.
In a media plan: "Launch spots in the top 25 DMAs first, then expand." This means the ads will start in the 25 largest TV markets by household count.
How DMAs are used in advertising
- Ranking: markets are ranked by the number of TV homes, so "a top 10 DMA" means one of the biggest.
- Targeting: digital ad tools let buyers pick DMAs, just like ZIP codes or states.
- Pricing: ads usually cost more per spot in larger markets, which is why planners also track CPM, cost per thousand views.
- Reporting: results are broken down by DMA to see which regions responded.
A DSP, or demand side platform, is one common place where a buyer checks DMA boxes to target streaming and online ads.
DMA meanings in other fields
| Field | Stands for | Example |
|---|---|---|
| Computers | Direct memory access | A drive moves data into memory without tying up the CPU |
| Tech policy | Digital Markets Act | A European Union law that sets rules for very large online platforms |
| Music education | Doctor of Musical Arts | A doctoral degree in performance, composition or conducting |
| Finance | Direct market access | Traders send orders straight to an exchange's order book |
Context does the sorting. Talk of ads, ratings or regions means Designated Market Area. Talk of chips, drivers or memory means direct memory access. A story set in Brussels about online platforms means the law.
How to say and write DMA
Say it letter by letter: "D M A." Print it uppercase without dots. The D sound is a consonant, so "a" comes first: "a DMA," "a DMA list." The plural is DMAs, with no apostrophe.
- "Our client wants coverage in six DMAs."
- "The smallest DMA in the plan has fewer than 100,000 TV homes."
- "Enable DMA in the device settings for faster transfers."
- "She is finishing a DMA in piano performance."
Terms that travel with DMA
Media buyers often use DMA alongside MSA, metropolitan statistical area, a government definition of a city region used for census and economic data. The two maps are close but not identical, since one is built around TV signals and the other around commuting and population. For other ad and sales terms, see CTA, SEO and the business acronyms list.
Questions people ask
What does DMA mean in TV ratings?
It means Designated Market Area, the local region a station serves. Ratings are reported by DMA so advertisers can compare markets.
How many DMAs are in the United States?
There are about 210. Each county belongs to one of them, and they are ranked from largest to smallest by TV households.
What does DMA stand for in computers?
It stands for direct memory access. It lets hardware like a drive or sound card move data into memory without the main processor copying every byte.
Is a DMA the same as a metro area?
Not exactly. A DMA is drawn around TV station coverage, while a metro area is drawn around population and commuting. They often overlap but can differ at the edges.
What is a DMA degree?
It is a Doctor of Musical Arts, a doctoral degree for advanced performers, composers and conductors. It focuses on performance and practice more than on research writing alone.