How Much Seafood Boil Per Person: Crab Legs, Shrimp and Everything Else in the Pot
You have a headcount, a date and a grocery list with a question mark at the top: how much crab legs per person, how much shrimp, how many ears of corn. Guess low and the table runs bare before the last plate. Guess high and you’re bagging leftover snow crab at midnight.
This guide gives per-person amounts for every part of a seafood boil, drawn from seafood suppliers, recipe publications and South Carolina’s tourism guide to the Lowcountry boil. Where those sources disagree, you get the range and the reason. If you’d rather skip the math, the last section turns a headcount into an order.
The short answer: half a pound of shrimp and an ear of corn per person
A mixed seafood boil calls for about 1/2 pound of shell-on shrimp, 1/4 pound of sausage, an ear of corn and a few small potatoes per person. Add 1/4 to 1/2 pound of crab legs per person if crab goes in the pot too. When crab legs are the whole meal, plan 1 1/2 to 2 pounds per person.
A seafood boil is a one-pot meal of shellfish, sausage, corn and potatoes cooked together and dumped out to share. In the Carolinas it also goes by Lowcountry boil or Frogmore stew. The seafood steam pot runs on the same idea, except everything steams together in one pot.
How much seafood per person, by protein
These amounts are shell-on weights, which is how seafood gets sold for a boil. Crab leg weights include the shell, so a pound and a half on the scale is a lot less meat on the plate.
| Protein | Main course, per person | In a mixed boil or with other dishes, per person |
|---|---|---|
| Crab legs (snow or king) | 1 1/2 to 2 lb | 1/4 to 1/2 lb |
| Shrimp (shell-on) | 1 lb | 1/2 lb |
| Clams (in the shell) | 1 lb (6 to 10 clams) to 2 dozen clams | No published figure |
| Lobster tails | One 6 to 8 oz tail, or two 4 to 5 oz tails | One 4 to 5 oz tail |
Crab legs: 1 1/2 to 2 pounds as a main, less in a mix
Cameron’s Seafood puts snow crab and king crab legs at about 1 1/2 pounds per person as a main course. The range at Crab Dynasty is 1 1/2 to 2 pounds. The Robert Wholey Company gives the widest spread: half a pound for guests who are lukewarm on seafood, up to 2 pounds for devoted crab eaters.
Recipe math runs lower when crab shares the pot. Taste of Home’s Lowcountry boil uses 1 pound of snow crab legs for four servings, or 1/4 pound each. A Food Network low country boil uses 4 pounds of crab legs for 6 to 8 people, which works out to about 1/2 pound each.
Shrimp: 1/2 pound in a boil, 1 pound as the star
Discover South Carolina suggests about 1/2 pound of shrimp per person in a Frogmore stew. Reventals’ shrimp boil guide lands on the same 1/2 pound for a casual party and moves to 1 pound when shrimp is the main attraction. So does Crab Dynasty, at 1 pound of raw, unpeeled shrimp per person.
At the low end, Taste of Home uses 1/4 pound per person, but that recipe uses peeled shrimp and adds crab legs, so the numbers don’t line up. Peeled shrimp carries no shell weight. For shell-on shrimp in a mixed boil, treat 1/2 pound as your floor.
Clams: sources split on the count
Parade estimates 1 pound of clams in the shell per person as a main dish and counts that at 6 to 10 clams. Crab Dynasty says one to two dozen. Clams come in a wide range of sizes, and the gap likely reflects which clams each source had in mind. Neither gives a side-dish amount. Plan around shrimp or crab first in a mixed boil and add clams as the extra. Parade’s lighter figure, 1/4 pound of shucked clam meat per person, fits an appetizer.
Lobster tails: count by the ounce
Get Maine Lobster sizes portions by the tail. One 6 to 8 ounce tail makes a main-course serving. Smaller 4 to 5 ounce tails run two per person as a main and one as an appetizer. Big appetites can take one large 8 to 10 ounce tail or two small ones.
Sausage, corn and potatoes per person
| Item | Per person |
|---|---|
| Smoked sausage | 1/4 to 1/3 lb |
| Corn | 1/2 to 1 ear |
| Potatoes | 2 to 3 small new potatoes, or about 1/3 to 1/2 lb |
Sausage. Discover South Carolina says about 1/4 pound per person. Food Network’s low country boil uses 2 pounds of kielbasa for 6 to 8 people, close to 1/3 pound each.
Corn. Taste of Home uses one ear per serving. Kimberly Schlapman’s Food Network recipe uses two ears, quartered, for four servings. Cut into halves or thirds, one ear goes further around the table.
Potatoes. The Explore Beaufort Frogmore stew uses 15 new potatoes for about six people. Charleston Magazine’s version uses 2 pounds of red potatoes for five or six, and Food Network’s uses 3 pounds for 6 to 8.
How to adjust for the menu and the crowd
Main event. Use the main-course column. A crab-only feast means 1 1/2 to 2 pounds of crab legs per person.
One dish among many. Use the mixed-boil column. Wholey’s guidance says to factor in the side dishes you’re serving before you set crab amounts. With a grill, a dip table and a dessert spread going, lean toward the low end.
Hungry crowd. Go to the top of every range. Wholey says avid seafood eaters can finish up to 2 pounds of crab each, and Get Maine Lobster moves big eaters to a large tail or two small ones.
Light eaters. Wholey puts picky eaters at about half a pound of crab. Plan for most of the group, not the one person who skips the shellfish.
Our fall party ideas cover the rest of the day when the boil anchors a bigger fall gathering.
Seafood boil for 20 people: the shopping list
Here’s the mixed-boil math multiplied out for 20 guests, with shrimp and crab both in the pot.
| Item | Per person | For 20 people |
|---|---|---|
| Shell-on shrimp | 1/2 lb | 10 lb |
| Crab legs | 1/4 to 1/2 lb | 5 to 10 lb |
| Smoked sausage | 1/4 to 1/3 lb | 5 to 7 lb |
| Corn | 1/2 to 1 ear | 10 to 20 ears |
| Potatoes | 1/3 to 1/2 lb | 7 to 10 lb |
That’s 20 to 27 pounds of shrimp, crab and sausage before a single ear of corn. All of it has to be bought, cleaned and cooked at the same time, for a crowd that’s already standing around the table.
Or skip the math: order by headcount
Topsail Steamer sizes every order by how many people it feeds, so the per-person math comes built in.
Bay Buckets® for 2 to 18. These are single-use seafood steam pots in two sizes. The Low Tider feeds 2-3 and the High Tider feeds 4-6. Every bucket comes with sweet corn, red bliss potatoes, butter, cocktail sauce and table paper. The Crabby Jimbo suits a crab-leg crowd, pairing shrimp and snow crab with potatoes and corn; the Low Country Shrimp keeps it to shrimp, corn, potatoes and sausage. Both sizes ship nationwide or can be picked up at a store.
The big-group option for 20 to 30. A Party Pot feeds 20-30 people and is pickup only, at every Topsail Steamer location. You choose the seafood from shrimp, snow crab, lobster tails, large sea scallops and littleneck clams, plus andouille or kielbasa, and it comes with corn, potatoes, seasoning, butter and cocktail sauce. Order 1-2 days ahead, and earlier for holiday weekends. It runs from about $20 per person, compared with seafood caterers that often charge $45 and up.
| Guests | Order | For a hungry crowd |
|---|---|---|
| 2-3 | One Low Tider | A High Tider for 3 |
| 4-6 | One High Tider | Add a Low Tider for 5 or 6 |
| 7-9 | A High Tider and a Low Tider | Two High Tiders, plus a Low Tider for 9 |
| 10-12 | Two High Tiders | Three High Tiders |
| 13-18 | Three High Tiders | Four High Tiders, or a Party Pot from 17 |
| 19-30 | One Party Pot | Add a High Tider for every 4 guests past 20 |
| 31-39 | A Party Pot and one or two High Tiders | Two Party Pots |
| 40-60 | Two Party Pots | A third pot past 40 |
The hungry-crowd column counts each Low Tider as 2 guests, each High Tider as 4 and each Party Pot as 20, the low end of each size.
Frequently asked questions
How much crab legs per person should I plan?
Plan 1 1/2 to 2 pounds of crab legs per person when crab is the main course. That weight includes the shell, which is why the number looks high. A mixed seafood boil with shrimp, sausage, corn and potatoes needs only 1/4 to 1/2 pound per person, based on Taste of Home and Food Network recipe amounts. Light eaters may stop at half a pound even when crab is the whole meal, while devoted crab fans can finish 2 pounds. If you don’t know the crowd, plan 1 1/2 pounds and let the sides cover the gap.
How many pounds of shrimp per person for a boil?
Plan 1/2 pound of shell-on shrimp per person for a seafood boil with sausage, corn and potatoes. Raise it to 1 pound per person when shrimp is the only seafood and the boil is the whole meal. The lowest figure, 1/4 pound per person, comes from Taste of Home’s Lowcountry boil, which uses peeled shrimp and adds crab legs. A quarter pound of peeled shrimp holds more meat than a quarter pound in the shell. Multiply by 20 guests and you need 10 pounds for a mixed boil or 20 pounds for a shrimp-only feast.
How much seafood boil per person do I need?
Plan about 1/2 pound of shell-on shrimp, 1/4 to 1/3 pound of sausage, 1/2 to 1 ear of corn and 2 to 3 small potatoes per person. Add 1/4 to 1/2 pound of crab legs per person if crab goes in the pot. Those amounts assume the boil is the main dish with a few sides around it. When it’s one dish on a bigger spread, lean toward the low end of each range. For a crowd of big eaters, or a boil with nothing else on the table, go to the top.
How much seafood boil do I need for 20 people?
For 20 people, plan about 10 pounds of shell-on shrimp, 5 to 10 pounds of crab legs, 5 to 7 pounds of sausage, 10 to 20 ears of corn and 7 to 10 pounds of potatoes. Those totals are the per-person amounts in this guide multiplied by 20. It’s a big shop, and everything has to be cleaned and cooked at once. One Party Pot feeds 20-30 people, so it covers a group of 20 with room for a few more. Order 1-2 days ahead and pick it up at your nearest Topsail Steamer store.
How many lobster tails per person?
Plan one 6 to 8 ounce lobster tail per person as a main course, or two smaller 4 to 5 ounce tails. As an appetizer or one item in a mixed seafood boil, a single 4 to 5 ounce tail per person works. For big appetites, go with one large 8 to 10 ounce tail or two small ones. Tail sizes vary widely from package to package. Check the ounces on the label before you count tails, since two 4 ounce tails and one 8 ounce tail are the same amount of lobster.
How many clams per person for a seafood boil?
Plan about 1 pound of clams in the shell per person as a main course, which Parade counts at 6 to 10 clams. A higher count comes from Crab Dynasty: one to two dozen per person. Clams vary a lot in size, so the difference likely comes from which clams each source had in mind. Neither source gives a side-dish amount. Plan shrimp or crab first in a mixed boil and treat clams as the extra. When clams are the centerpiece, buy by the pound so size differences even out.
How many Bay Buckets do I need for my group?
One High Tider feeds 4-6 people and one Low Tider feeds 2-3. For 8 to 12 guests, order two High Tiders. For 13 to 18, order three. If the group is hungry or the boil is the whole meal, size up: count each High Tider as four people and each Low Tider as two. Past about 18 people, a Party Pot is simpler, since one pot feeds 20-30. Bay Buckets ship nationwide or can be picked up at a store, and Party Pots are pickup only.
How much does a seafood boil for a crowd cost per person?
A Party Pot runs from about $20 per person, while seafood caterers often charge $45 and up. Caterers also tend to need 2 to 4 weeks of lead time, and a Party Pot needs 1 to 2 days. The gap grows with the guest list. For 25 guests, it’s roughly $500 against $1,125 or more. Treat both figures as approximate, since your seafood picks and the caterer’s menu move the price. Groups under 20 usually do better with Bay Buckets sized from the headcount table.
Plan the pot, skip the math
Your headcount is the one number you need. Find your size in the table above, then order. For a smaller group anywhere in the country, get Bay Buckets shipped fresh. Groups of 20 or more can pick up a Party Pot at your nearest Topsail Steamer store. No toil, just boil.
