The nearest town for anything even remotely resembling eating and shopping would be Blair. Other than that, you're pretty much down to Omaha and Sioux City. The biggest "nightlife" in Tekamah is Ronnie's Bar, town staple for many a year now.
As long as you are not working in Tekamah, you would probably do ok. Anywhere north of there gets rather dumpy and shady. Lived in Tekamah for 9 years, glad to be the f*ck out though. Nicely situated between South Sioux and Omaha, though.