The statistics included details that there were 62 "farm murders" in the past year - a racially sensitive issue in South Africa, where some white farmers say they face a wave of deadly attacks trying to force them off their land.
Police also revealed that they recorded at least 18,233 cases of attempted murder.
Serious crimes are divided into contact crimes (murder, sexual and common assault, robbery), contact-related crimes (arson and malicious damage to property), and property related crimes (burglary and theft).
Nyanga, in the Western Cape, remained the murder capital of the country, with an increase in murders of 9.6%.
In Gauteng‚ the Jeppe area had the highest number of murders in the province with 125 murders reported in this financial year. Nyangna in Western Cape took the top spot.
He said murders of women and children had also increased.
Glencoe was little safer with five murders, two down from previous year, and 12 stocktheft cases.
Murders of Women and Children 2017/2018
KwaZulu-Natal is the most unsafe province for women and children, as 20 per cent of the murders occurred within KZN borders.
Sekhukhune said there were 62 reported crimes that were categorised as farm murders.
The stats also revealed that more boys than girls are being murdered in the country.
"Sixty-two individuals were murdered during 58 attacks on farms and small holdings". This is an increase of 56.6% from previous year. The number of cash-in-transit heists has increased by 56.6%, while rape cases have increased by 0.5%.
He said three out of the seven crime categories decreased.
In 57 of the incidents in 2017/18 year, explosives were used, and in 178 incidents, firearms were used. "It is the ANC's inability to put the people of South Africa first which means that citizens are not and do not feel safe in their homes and in the streets", said the DA's shadow minister of police Zakhele Mbhele.