Banxico Coin Catalog: How to Find Official Mexican Coin Data (2026)

If you have a box of Mexican coins and you want the official facts (mintage, silver content, dimensions), the good news is that the Bank of Mexico, called Banxico, publishes all of it. The bad news is that finding it takes hours. We know, because we tried, timed it, and then built a catalog that does the same job in seconds.

Here is the honest reality of the official sources in 2026: the data is real and it is public, but it is split across three systems that don't link to each other, and one of them is designed for economists who already know the internal code. If you are a regular person holding a coin, the official route is close to unusable.

What happened when we tried the official catalog

We wanted one simple number: the official mintage of the 2005 Cultural series honoring the Mexican states (the 32 two-color coins that show an emblematic image of each state behind the national coat of arms). We knew the figure existed at Banxico because it had been cited in a report.

Three hours later, we were still digging.

We tried banxico.org.mx under the Banknotes and Coins section. It led to individual coin pages with photos and specs, but no mintage. We tried the numismatic collection viewer, which looks great on a desktop but won't load images on a phone. Then we tried the SIE system (Sistema de Información Económica, the Economic Information System, where Banxico publishes the actual statistics). There we found a table called "Cuadro CM22" with codes running from SM685 to SM716 for the 32 pieces of the first phase. We downloaded the CSV in Windows-1252 encoding, opened it in Excel, and there was the answer: 150,000 pieces per state, except Coahuila with 400,000.

Three hours, for a fact any collector should be able to see in one click. That is exactly why we built this catalog.

The official catalog: what it has, and why nobody finds it

Banxico publishes more numismatic information than most people realize. The problem is that it lives in three separate places with no links between them.

banxico.org.mx/billetes-y-monedas has an individual page for each coin: official photo, weight, diameter, year of issue, the DOF decree number (Diario Oficial de la Federación, Mexico's official gazette), and technical specs. What it does NOT have is the real mintage or any price. And there is no navigation between related coins. Open the 2005 Cultural coin for Aguascalientes, and there is no way to jump to the Jalisco coin without going back to the master index.

The 3D collection viewer displays every piece in Banxico's Numismatic Museum in a polished desktop interface. On a phone it barely loads, and you cannot filter by denomination, era, or series. If you want the two-color commemorative 20-peso coins, you scroll through image after image.

The SIE system holds the hard data: official mintages by quarter, reported minting figures. You reach them by searching codes like "SM624" for the 20-peso Type C or "SM685" for the 100-peso States first phase. The interface assumes you already know the exact code. If you don't, you never reach the table.

All three are official, all three hold real data, and all three are useless to the person actually holding a coin.

Official Mexican coin data: quick reference

What you want to know	Where Banxico keeps it	The catch
Photos, weight, diameter, decree	banxico.org.mx coin pages	No mintage, no navigation between coins
Full museum collection	3D viewer	Won't load on phone, no filters
Official mintage figures	SIE system, tables like CM22	Need the exact internal code (SM685, etc.)
Market price / where to sell	Not published	Outside Banxico's mandate

The 2005 States series mintage, in plain numbers

Since that was the figure we chased, here it is stated clearly so you don't have to repeat our three hours:

• Every state in the 2005 Cultural States series: 150,000 pieces.
• The single exception is Coahuila: 400,000 pieces, the highest mintage of the series.

A higher mintage generally means a more common coin, which matters when you are trying to gauge value. Coahuila being nearly three times more plentiful than the rest is the kind of detail that changes how a piece trades.

What we did with the same data

Pesoteca does not invent numbers. It takes the same figures Banxico already publishes, connects them through our own identifier system (PSM, for Pesoteca Sistema Mexicano), and presents them in navigable pages: photo, weight, diameter, mintage, era, series, denomination, and a market price range.

The technical difference is small. The difference in use is enormous. What takes three tabs, a CSV download, and knowing an SIE code at Banxico comes down to this here: you type the name in the search box, the page appears, and if you want other coins in the same series the link sits right next to it.

Concrete examples:

The 100 Pesos States, Aguascalientes Cultural 2005 page carries the full record: obverse and reverse, DOF decree, weight, .925 silver fineness, the official Banxico mintage, and links to the other 31 pieces of the same phase. Those are the same facts scattered across banxico.org.mx and SIE table CM22, gathered on one page.

The complete 64-piece series sits in a single view, each coin linked to its own record. Banxico has no such view. You would have to build it yourself, clicking 64 times.

The live gold Centenario price, refreshed against the spot market every hour, compared across multiple sales channels. The Centenario is Mexico's classic 50-peso gold coin, prized for its gold content. Banxico doesn't publish this because it isn't their job, but anyone about to buy one needs the figure.

Why it's free, and why it stays free

This is the question we get most. If Banxico did the cataloging and dealers charge for appraisals, why is everything here free?

Because Mexican numismatic information should be public. Banxico already did the cataloging with public money. The national mint already did the documentation with public money. The person walking in with a coin should not have to pay a subscription to learn what they have.

The site runs on contextual ads and referrals to a directory of verified shops, not a paywall. That decision is documented in the site's mission, and it isn't changing.

All we ask is that the community pitch in. Have a piece that isn't in the catalog? Send a photo. Spot a wrong figure? Tell us. Know a variety that still needs documenting? Open a thread. The site belongs to the people who collect this, not to us.

Did you try Banxico's catalog and give up the way we did? Run your coin through our search and tell us in the forum whether you found your piece in under 30 seconds. That is the honest test of whether this works.