Reviewed by Peter Berk, President and Chief Media Strategist, Berk Marketing · Last updated 28 September 2026
Radio market rankings tell you how many people live inside a survey area. They do not tell you where your advertising will work. Both facts matter, and only one of them is usually explained to an advertiser.
How radio markets are ranked
Nielsen Audio defines the metro survey areas that the industry treats as radio markets, and ranks them by the population aged 12 and over living inside each one. The 12+ figure is the convention because it is the age from which listening is measured, not because twelve year olds are a target for anybody.
Rankings are revised as populations shift. The most recent revision took effect with the Fall 2025 survey, and the full list below reflects it.
The 100 largest radio markets
In Nielsen rank order, with how each market is measured. Ten of these markets have station level detail on this site, and Los Angeles and San Diego have pages of their own; those rows are linked. We buy every market on this list, so the other names link straight to a free media plan request for that market.
Source: Nielsen Audio market ranks and measurement method as published by RadioInsight, reflecting the revision effective with the Fall 2025 survey. Checked 5 September 2026. Nielsen publishes the official rankings and its population estimates directly.
The measurement column matters more than the rank
Nielsen measures 48 markets continuously with the Portable People Meter, a device carried by panel members that detects the stations they are near. Every one of those 48 sits inside the top 57. Everything below that line is measured by paper diary, where a smaller panel writes down what they remember hearing, across a limited number of survey periods a year.
Nine markets inside the top 57 are measured by diary despite their size: Puerto Rico at 17, Hudson Valley at 42, Oklahoma City at 49, New Orleans at 50, Fort Myers/Naples at 51, Richmond at 52, Greenville/Spartanburg at 53, Monmouth/Ocean at 54 and McAllen/Brownsville/Harlingen at 56. An advertiser who assumes a top fifty market comes with metered data will be caught out in those.
The practical difference is what you can do while a campaign is still running. In a metered market audience movement shows up continuously, so a schedule can be judged and adjusted mid flight. In a diary market the numbers arrive in books, well after the fact, so ratings are a planning input rather than a feedback loop. That is why we judge a diary market schedule on response, counting calls and quotes against the placements that produced them, rather than on ratings movement that will not arrive in time to act on.
What changed in the latest revision
The headline change was Houston entering the top five and pushing San Francisco to sixth. Further down the list:
- Miami–Fort Lauderdale rose to 11, with Seattle–Tacoma moving to 12
- Portland moved to 22 and Baltimore to 23
- San Antonio moved to 24 and St. Louis to 25
- Raleigh–Durham rose to 34, with Kansas City at 35
- San Jose rose to 39 and Nashville moved to 40
- West Palm Beach rose to 47, with Greensboro–Winston-Salem–High Point at 48
Movements of one or two places rarely change a media plan. They are worth watching only because they indicate which regions are growing, which occasionally does change where an advertiser should expand next.
Why market rank is a poor guide to where to advertise
Rank measures population. It says nothing about whether your customers are in that population, whether you can serve them, or what it costs to reach them often enough to matter. Three things follow from that.
Cost scales with population, so rank buys you nothing on efficiency. A large market is expensive precisely because it is large. Buying New York does not make a schedule better, it makes it costlier per week of presence, and thinner if the budget does not grow to match.
Coverage you cannot serve is waste you still pay for. A signal that reaches five million people is only worth five million people if you can sell to all of them. An advertiser with one location, a delivery radius or a state license is paying for a great deal of audience that cannot buy.
Frequency is easier to build in a smaller market. The same budget that scatters spots across a top-ten market can put real weekly weight against one audience in a market ranked in the thirties. Presence in a market where you can be heard repeatedly beats a token presence in a market where you cannot.
This is the most common structural error we see in radio proposals: a budget spread across large markets because large markets sound impressive, delivering nothing anywhere.
What actually decides which markets to buy
- Your real trading area. Where you can deliver, install, ship or serve. Start there and let rank fall where it falls.
- Audience composition, not market size. Whether the stations available in that market actually index well against your customer. Our station lineups by market show what is on the air in each of the top ten and how the audience is split between them.
- Cost of meaningful weight. Not cost per spot, the cost of enough spots per week, for enough weeks, for the same person to hear you several times.
- Competitive clutter. Some categories are heavily advertised in some markets and almost absent in others. The quieter market is often the better buy.
- Whether you can measure it. A market where response can be attributed teaches you something. A market where it cannot is an act of faith.
Applied honestly, this usually produces a shorter market list than the advertiser expected and a heavier schedule in each one.
Frequently asked questions
Where do the official rankings come from?
Nielsen Audio, which defines the metro survey areas and publishes population estimates and ranks. Revisions take effect with a named survey, which is why any ranking should be quoted with the survey it belongs to.
Which stations are in each of these markets?
See radio stations by market, which lists the commercial stations in each of the top ten markets in audience order, with format and owner, and separates out the public and listener-supported stations that carry share but cannot be bought.
Does a higher-ranked market cost more?
Generally yes, because rates track audience size and demand. What varies far more than rank is what you get for the money in a given format and daypart. See what radio advertising costs.
Should a national campaign simply buy the top markets in order?
Rarely. A national schedule built by rank tends to overspend on coverage the advertiser cannot convert. Building from audience and trading area usually produces a different list. See national radio advertising.
Is a market outside the top 100 worth buying?
Often, yes. Smaller markets can be inexpensive, less cluttered and easier to dominate, and for a business whose trading area matches one of them it is frequently the most efficient money available. See local radio advertising.
How often do the rankings change?
Populations and ranks are revised periodically as estimates are updated. Most movement is a place or two and has no bearing on a media plan.
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Berk Marketing represents advertisers, not radio stations or media companies.