| Index | Arnold | Nebraska | National | 
| Average Test Scores | 68% | 53% | 48% | 
| Student/Teacher ratio | n/a | 13:1 | 16:1 | 
| Total public schools | n/a | 780 | 79,221 | 
| Total private schools | n/a | 182 | 24,874 | 
| Total post-secondary schools | n/a | 56 | 7,963 | 

				
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				| Index | Arnold | Nebraska | National | 
| Completed 8th grade | 92.7% | 88.4% | 84.3% | 
| Completed high school | 92.0% | 87.2% | 83.0% | 
| Completed some college | 60.1% | 63.7% | 59.4% | 
| Completed associate degree | 38.8% | 40.1% | 38.5% | 
| Completed bachelors | 23.1% | 30.0% | 30.3% | 
| Completed masters | 3.4% | 9.9% | 11.5% | 
| Completed professional degree | 0.2% | 2.9% | 3.3% | 
| Completed doctorate | 0.0% | 1.2% | 1.3% | 
There are a total of n/a public schools, n/a private schools and n/a post-secondary schools in Arnold. Using the proficiency score averages, the average test scores for Arnold, NE schools is 68%. The average student to teacher ratio is n/a. In Arnold, NE, an average of 92.7% of students have completed 8th grade and an average of 92.0% have completed high school.
| City | Population | Avg. Test Scores | National Avg. | 
| Callaway, NE | 541 | 53% | 9.4% | 
| Arnold, NE | 881 | 68% | 40.6% | 
| City | Population | Avg. Test Scores | National Avg. | 
| Papaikou, HI | 881 | 25% | 47.9% | 
| Foristell, MO | 881 | 55% | 13.5% | 
| Lewisville, AR | 881 | 34% | 30.2% | 
| Washington Boro, PA | 881 | 72% | 49.0% | 
| Coulterville, IL | 881 | 33% | 32.3% | 
| Arnold, NE | 881 | 68% | 40.6% |