The phrase "a populace with a" is correct and usable in written English.
It can be used when describing a characteristic or quality of a group of people or community.
Example: "The study focused on a populace with a strong sense of community and shared values."
Alternatives: "a community possessing a" or "a society characterized by a".
The dream of dictatorial stability has always eluded Iran's rulers, whether monarchs or Islamists, as they have confronted a populace with an undaunted spirit of dissent.
When the civilian bystanders to the attack ran toward the first blast to give aid to the victims, without a second thought for their own safety, the primary desire of the terrorists — to paralyze a populace with fear — was already thwarted.
Answer: they were all involved in a vast celebrity conspiracy to slowly add fluoride to the water, thereby making all our teeth as white as their own, culminating in a populace with teeth so bright that we won't notice it when Skull and Bones revamps health care to cover only "skulls, family members of skulls, and their besties".
And arriving at that requires a populace with access to democratic systems and a government that willingly preserves, extends, and deepens that access.
Mallett has interpreted the fresco as a Medicean attempt to exalt "the praiseworthiness of condottieri to a populace with mixed feelings".
His golf shirt screamed to the everyman populace with a Nascar sensibility.
Starting in 2017, Malcolm Tressalian and his sister, Larissa, bamboozle the populace with a stunning series of falsehoods.
"I watched an open lorry drive past, to the accompaniment of boos and catcalls from the French populace, with a dozen miserable women in the back, every hair on their heads shaved off.
Jackson tells the panel the police under Saddam's reign had been used in a lawless and corrupt way, so it was important to instil confidence in the populace with a new police regime.
