Rich What Sweetfeet is talking about would be ZERO four wheeler and auto loans!!!! Save up and pay with cash and even then by used. Truthfully a young person showing up at the bank with a good payment history on auto loans was a double edged sword. It does show how you have paid loans off but it also shows that you bought things that could have be bought with saving for a short period.
You are talking about working and being in college. You do not talk about what, if any farming experience, you have. This will be an important consideration when you go for any type of Ag loan. IF you by a smaller tract that gets considered a home loan then the farming history is less important.
Most bankers are not going to be impressed with your education and car loan history when you are talking about buying farm land.
Also like several have posted: Farm land is at generational high prices right now. It is not the time to be buying if you can avoid it. Yes my two sons just bought land but it was right next to them. It may not come up for sale in their working life time again. You do not have that issue. You have said that you do not even know where you are going to be working so you have no idea of where you need to be looking at land.
It could very well not even be in Iowa. You will find out that there is a real wage drag in this state. That is why many of your class mates are going out of state for jobs. That drag can be as high as 50%.
Another thing. DO not buy into the trap of thinking you can buy a piece of land today and divide/sell it in a few years and make a big profit. There is very little of that kind of land here in Iowa. The current market has ten people thinking that buying ground right now.
Maybe you can find some with a ran down home that you could fix up and sell but even that market is touch right now.
I would still recommend working and saving now for a future purchase. You have too many unknown factors to make a major purchase in the next year. You need to get a job and get settled in an then start looking for a place.
A piece of land or a house that you buy before you are financially ready will turn into a nightmare real fast and could sink you.