Almost exactly a mile away. We moved just before I started high school, and my parents were looking for homes in that area specifically so my sister and I could walk to school.
My eldest son has started high school three miles away. He takes a public bus.
Mine was just a mile and a half away, by road - probably about two-thirds that that as the crow flies, but I grew up in Haifa, and due to the mountainous terrain there isn’t a single straight road in the entire city. Sometimes my dad would drive me, sometimes I’d take the bus, and sometimes I’d walk.
Google says exactly 3 miles. I either biked, drove or walked.
Googlemaps says .9 miles, but I was bussed back in the day, so it had to be over a mile…maybe just a hair over by old-fashioned odometer readings! Most days once I had my license I drove because I had an early Chamber choir rehearsal before school started, or caught a ride with the boys across the street. But I still rode the bus occasionally, up through graduation. If I didn’t have a specific need for the car, or if my mom needed it (I didn’t have my own) I caught the bus at the end of my driveway.
I lived 1 block away and yet I managed to skip morning homeroom for two years. I think there’s merit to that study about teens needing sleep!
Just a hair over half a mile. Walked everyday, always in a blizzard and uphill both ways! The maddening thing was, I lived JUST outside of the bussing parameters. I could walk home from school, continue walking the 20 yards or so to the end of my block, and greet my cousin getting off the school bus that stopped there. Unfair!
There’s a neighborhood adjacent to my high school, and that’s where I lived. But my house was the furthest house away from my locker (honest, I mapped it) and I am totally useless in the morning, so my mom drove me my freshman year. After that, my brother drove me then I drove myself.
Now, I live in the same neighborhood, closer to the high school. When I walk the dog, I walk around the school. I guess I’m making up for all those days I couldn’t be bothered to walk to school 
Three blocks–about a quarter of a mile. A five-minute walk.
I moved several times while in HS, but stayed at the same school.
Beginning and end of my time there, I was within walking distance - it was a LONG walk, but one I could make without problem (probably 45 minutes either way). If I missed the bus, I could walk and not be late for class, though I’d arrive after the bus did, and I walked home just because I wanted to plenty.
Middle, I was all the way across the city. In another school’s area, in fact, but since I was already attending the first school, I got permission to continue going there instead. Luckily, I didn’t have class until second period then, so I didn’t need to wake up early.
About a minute’s walk. I lived next door to my high school.
About 9 miles.
I was the first one to be picked up every morning, and the last to be dropped off. And it was a quarter mile walk from my house to where the bus picked me up. So it was about a 45 minute trip for me.
I walked through the gate in our back fence, and I was in the school yard.
I lived about a block from school. I’m from a rural area with a K-12 facility, so I walked that block back and forth five days a week, 40 weeks a year, for thirteen years.
Puts things in perspective, I guess. There is a high school two blocks away from my parents’ house, but that’s not the one I went to. I took the bus all the way across town, in a brutal, winding journey, all of 2.67 miles away. I swear, it felt like it was a million miles away at the time!
My high school was just over 30 miles from our house, but i only had about 50 yards to walk to school in the morning, because it was a boarding school.
Just checked on Google, and it was just a little over 2 miles.
3.5541 miles. I took the bus the first three years and got a ride senior year. (About 1,000 feet from grammar school.)
9 miles.
I lived in a (then) small New England town with a regional school system - one jr high and one high school for three towns.
My Jr. High was about 4.5 miles away, in an adjacent town – but of course the bus took a more circuitous route.
The High School was only 2 miles from my house, and I often rode my bike before I got a license and a car. I probably walked home more than once.
Six miles, most direct route. 13, on the bus.
Sometimes I took the bus, sometimes I drove, sometimes I biked in, and sometimes I ran - Usually during Wrestling season.