LEGO Duplo sets by the numbers

LEGO Duplo runs to 1,397 sets released between 1969 and 2026, totaling 51,220 pieces across the whole theme. The median Duplo set is just 25 pieces, which tells you most of the catalog is small, toddler-scaled builds rather than showpiece models. Of those 1,397 sets, 1,305 are likely retired based on release year, 44 sit in the inferred retirement window, and 48 have come out in the last two years.

How big does Duplo get

Even though the median set is tiny, a handful of Duplo releases push well past typical piece counts for the theme. The largest is Black Castle (4785), released in 2005 with 386 pieces, nearly 15 times the median. Behind it comes Green Strata (4296) from 2004 at 260 pieces, then a cluster at 250 pieces: XXL 250 Canister (5490) and XXL 250 Canister (3599), both from 2005, plus Basic Bricks 250 pcs (3957), also from 2005.

The size pattern is worth noting: most of the largest Duplo sets cluster in the mid-2000s, a stretch that also happens to be the theme's busiest production window. Knights' Castle (4777), from 2004 at 168 pieces, and Build and Play Box (4629), from 2012 at 150 pieces, show the range kept turning out large sets well after that initial peak. More recent large entries include Happy Childhood Moments (10943) from 2021 at 231 pieces and 3in1 Family House (10994) from 2023 at 218 pieces, so the oversized format hasn't disappeared with time.

Further down the size list sit sets like XXL Cannister (5516) from 2007 at 215 pieces, XXL Box (5511) from 2010 at 201 pieces, Creative Birthday Party (10958) from 2021 at 200 pieces, Giant Tower (10557) from 2013 at 200 pieces, and Giant Box (5588) from 2009, also 200 pieces. That's five separate sets landing on or near the 200-piece mark across a thirteen-year span, which suggests 200 pieces functions as a kind of ceiling for a mid-sized Duplo release.

None of these are oversized by general LEGO standards, but within Duplo's own scale, a 386-piece set like Black Castle (4785) is an outlier. Most years in the catalog don't produce anything over 200 pieces at all.

Which sets have minifigures

Duplo mostly skips minifigures in favor of its own oversized figures, which is why almost every set in the biggest-sets list above shows zero minifigs. Only two sets in the whole catalog register any: Lightning McQueen & Mater's Car Wash Fun (10996), from 2023 with 29 pieces and 2 minifigures, and McQueen's Visit to Doc's Garage (10456), from 2025 with 35 pieces and 1 minifigure.

Both are small, both are recent, and both sit at the lower end of the piece-count range rather than among the large sets covered above. That scarcity makes sense for Duplo: the line's core figures are larger and simpler than a standard minifigure, so whenever an actual minifigure shows up in a Duplo box, it's the exception rather than the rule. Across 1,397 sets spanning 1969 to 2026, exactly two carry any minifigure count above zero.

If you're building a collection specifically around that quirk, these two sets, Lightning McQueen & Mater's Car Wash Fun (10996) and McQueen's Visit to Doc's Garage (10456), are the complete list as it stands. Nothing else in the LEGO Duplo catalog qualifies.

Output by year

Duplo's busiest year was 2001, with 56 sets released, a figure no other year in the theme's history has matched. The years right around it were almost as active: 2004 with 48 sets, 2005 with 47, 1998 and 2002 each with 44, 2000 with 42, and 2006 with 39.

That run from the late 1990s through the mid-2000s is clearly the high-water mark for Duplo output. After 2006, nothing comes close until 2014, which also hit 39 sets, the last year to appear among the theme's busiest. Between those two clusters and after them, annual output drops well below those totals, even as the theme keeps releasing new sets every year.

Looking at that spread, the theme has never been a small, steady trickle. It runs in waves, with multi-year peaks like 2001 through 2006 followed by quieter stretches, then another cluster of high-output years such as 2014. The full year-by-year table above covers all 56 years Duplo has existed, from 1969 to 2026.

Compare that to the 48-set total for the last two years combined, 2025 and 2026, and it's clear current output runs at a fraction of the theme's historical peak years, even though Duplo as a whole has never stopped producing new sets.

What's new and what's likely retired

48 Duplo sets have been released in the last two years, spanning 2025 and 2026. The 2026 slate already includes 3 in 1 Modern Family House with Figures (10470) at 166 pieces, Discovery Forest with Wild Animals (10480) at 131 pieces, and 3 in 1 Creative Ramps with Vehicles (10478) at 111 pieces. Smaller 2026 entries include Animal Building Game (10472) at 94 pieces, Mickey Mouse Clubhouse with Minnie & Pluto (10465) at 87 pieces, 3 in 1 Construction Site and Vehicles (10476) at 84 pieces, and Family House (10467), also 84 pieces.

2025 brought 3in1 Dinosaurs on Wheels (10451) at 108 pieces, Big Interactive Community Train (10428) at 103 pieces, Grandpa Pig's Garden and Greenhouse (10461) at 102 pieces, 3in1 Wild Animal Families (10446) at 92 pieces, Bluey’s Family House (10459) at 83 pieces, and the minifigure-carrying McQueen's Visit to Doc's Garage (10456) at 35 pieces. Across both years, piece counts stay modest, nothing here approaches the 200-plus range covered in the biggest-sets section.

On the other end, 44 sets currently sit in the inferred retirement window, and 1,305 sets across the theme's history are likely retired already. LEGO doesn't publish official retirement dates, so that window is inferred purely from release year, not from any announcement or stock signal. There's no price or market data on this site to indicate whether a set is getting harder to find, so treat the retirement figures as a rough, year-based estimate rather than a confirmed status.

Set those 44 in-window sets against the 1,305 already retired and the 48 newly released sets, and the shape of the theme's current lifecycle becomes clear: a small, steady flow of new releases replacing an enormous back catalog that has mostly aged out already.

If you're tracking Duplo by volume, the mid-2000s and 2014 are where the theme produced the most sets, while the handful of standout large builds like Black Castle (4785) and Green Strata (4296) are exceptions in a catalog where the typical set is 25 pieces; use the year and size data here to decide what's actually rare versus just old.