County Fair Guide

Los Alamos County Fair

Los Alamos, New Mexico

📅

2026 Dates

August 7–9, 2026

Duration

3 days

👥

Size

small

Before You Go

Los Alamos sits on a mesa above the Rio Grande gorge — the Bradbury Science Museum, Bandelier National Monument's cliff dwellings, and the stunning Jemez Mountains are nearby.

On the Midway

Expect livestock judging, 4-H competitions, carnival rides, and the unique community spirit of the world's most famous nuclear weapons laboratory city.

What to Know

The Los Alamos County Fair is a three-day August celebration in the birthplace of the atomic bomb, bringing the scientific community of the Pajarito Plateau together for agricultural competition and community fun.

Heading to Los Alamos County Fair?

Our complete packing list covers what actually makes a difference — sun protection, footwear, and the small things people forget until they need them.

As an Amazon Associate I earn from qualifying purchases.

Nearby County Fairs

Visit Official Website →

Something wrong with this listing? Suggest a correction →